How to Read Vintage Clothing Labels and Dates (A Complete, Honest Guide From Someone Who Does This Every Day)

I read vintage clothing labels every single day. It is genuinely one of my favourite parts of the job. A label is a tiny piece of textile history stitched into a garment, and once you know what to look for, you can date a piece to within a decade in about sixty seconds. You can also spot a fake, confirm authenticity, and understand exactly what you are buying before you spend a cent. Or a euro, rather. This guide is everything I have learned through years of sourcing and selling vintage Ralph Lauren, Tommy Hilfiger, Lacoste and similar brands at Revaleur. I have tried to make it the only guide you will ever need on this topic.

The golden rule: every label clue is a "not before" date

Before we get into specifics, this framing matters enormously. Every clue you find on a vintage label tells you the earliest a garment could have been made, not the exact year. A care label means the garment was produced after July 1972. An RN number in a certain range means the company registered after a certain year. The country name on the label tells you the garment could not have been made before or after that country existed under that name.

The practical rule: the newest clue you find sets your floor. If one clue points to 1965 and another points to 1978, you are looking at something made in 1978 at the earliest. And three clues pointing to the same decade is confidence. One clue alone is interesting. Three clues pointing the same way is a defensible date.

The care label: the single most reliable clue

In 1971, the US Federal Trade Commission made permanent care labels mandatory on garments. The rule took effect for garments leaving factories on 3 July 1972. This single fact is the most useful thing in all of vintage dating. Here is what it means in practice:

• No care label at all: strongly suggests pre-1972 for US-made garments. This is the fastest single clue available, and it is almost always correct.
• Written care instructions in full sentences ("Dry clean only", "Hand wash in cool water"): typical of the 1970s through to the mid-1990s.
• Care symbols alongside written text: generally points to the mid-1990s onward, as pictogram standards became more widely adopted internationally.
• Care symbols only, with no words at all: in the US context, this points to 1997 or later. The FTC only allowed symbols without any written text from July 1997 onward.

One important nuance: this rule applies to US domestic goods first. The care labelling requirement was extended to imports in 1984. So a pre-1984 European or Asian import might lack a care label even if it was made in the mid-1970s. Always cross-reference with the country of origin.

RN and WPL numbers: the free dating tool almost nobody uses

On most American-made garments you will find either an RN number (Registered Number) or a WPL number (Wool Products Label number). These were issued sequentially by the Federal Trade Commission to identify clothing manufacturers, importers and distributors. The crucial thing to understand is that the number reflects when the company registered, not when the specific garment was made. It gives you a "not before" date, not an exact year of production.

Here is how to read the numbers:

• RN numbers below 13670: issued between 1952 and 1959.
• Five-digit RN numbers from 13670 up to around 59000: generally point to the 1960s through to 1970.
• Five-digit RN numbers above 59000: suggest production from around 1970 onward.
• Six-digit RN numbers: point to 1980s registration or later.
• WPL numbers: these predate RN numbers and were used for wool products from the 1940s onward. A WPL number alone, with no RN, often suggests a garment from before the early 1970s.

You can look up any RN number for free at the FTC's online database. Type in the digits without the letters "RN" and it will show you the company name and sometimes a registration address. This is incredibly useful for confirming brand authenticity. One important caveat: a major brand like Ralph Lauren uses the same company-level RN number (RN 41381 for Polo) across many decades of garments, so the RN alone will not date the piece. Use it to confirm the maker, then rely on other clues for the date.

Union labels: a goldmine for American vintage

If you are dating American vintage from the mid-20th century, union labels are extraordinarily useful. The two main ones to know are the ILGWU (International Ladies' Garment Workers' Union) for womenswear and the ACWA (Amalgamated Clothing Workers of America) for menswear. Both changed their label designs several times across the decades, which makes them reliable dating markers.

ILGWU label design timeline

• "ILGWU" in plain block text, no graphic: pre-1950s.
• Red, white and blue shield logo: roughly 1959 to 1974.
• "Look for the Union Label" text (from the famous TV ad campaign): 1975 to 1995.
• No union label present: post-1994, or an imported garment, or a brand that simply was not unionised.

For the menswear brands we deal with at Revaleur, union labels appear most often on older American-made pieces from the 1970s and earlier. By the 1980s, production was shifting overseas and union labels become much less common. Their presence is genuinely useful for confirming a pre-1980s American origin.

Country of origin: reading geography as history

Where a garment was made tells you a great deal, because global manufacturing shifted dramatically across the decades. A few examples that are particularly useful:

• "Made in USA" with no care label: a very strong indicator of pre-1972 American manufacture.
• "Made in USA" on a Ralph Lauren or Tommy Hilfiger piece: a reasonable indicator of pre-1990s production, though some US manufacturing continued into the 1990s.
• "Made in West Germany": 1949 to 1990. West Germany reunified with East Germany in October 1990, so this label cannot predate 1949 or postdate 1990.
• "Made in Occupied Japan": 1945 to 1952 precisely. One of the most exact dating labels in existence.
• "Made in Yugoslavia": 1929 to 1992.
• "Made in Hong Kong" or "British Hong Kong": peaked in the 1960s and 1970s for garment manufacturing.
• "Made in Czechoslovakia": before 1993, when the country split into the Czech Republic and Slovakia.

For the brands we specialise in, "Made in France" on a Lacoste piece is a strong indicator of older production, since Lacoste moved the majority of its manufacturing away from France during the 1990s and 2000s. A "Made in France" Lacoste polo is worth considerably more to collectors, typically €60 to €120 for a good example versus €20 to €40 for a later imported piece in equivalent condition.

Fabric content and fibre labelling: another layer of evidence

In the US, the Textile Fiber Products Identification Act came into force in 1960. From that point, garments were required to list the fibre content by percentage. This means:

• No fabric content listed at all: strongly suggests a US garment made before 1960.
• Fabric content listed: 1960 or later for US-made pieces.
• 100% synthetic fibres only (pure polyester, nylon etc.): common from the late 1960s through the 1970s, when synthetics peaked in mainstream fashion.
• Cotton and wool blends reasserting themselves: from the early 1980s onward, particularly in quality menswear brands like Ralph Lauren and Lacoste.

The Woolmark symbol is another useful clue. The original circular Woolmark logo was introduced in 1964. If you see it, the garment is 1964 or later. The design has changed slightly since then, and the Vintage Fashion Guild's online label archive is useful for cross-referencing specific versions.

The label itself: material, font and construction

Most guides focus entirely on what the label says. The label itself, as a physical object, also tells you things.

Label material

• Woven satin or taffeta labels: common through the 1950s, 1960s and into the 1970s. They feel slightly heavier and more textured.
• Printed cotton or synthetic labels: became more common from the 1970s onward as printing technology improved.
• Heat-transfer and tagless labels: a later development. Hanes introduced its tagless undershirt around 2002. If there is no physical label at all and just a printed-on tag area, you are almost certainly looking at a post-2000 garment.

Typography and font

Script and serif fonts on labels are generally older, often associated with pre-1960s and 1960s production. Clean sans-serif typography became more common from the 1980s onward as brands modernised their identity. This is not a precise science, but when you are cross-referencing with other clues it adds another data point. The Vintage Fashion Guild's free online label resource archives labels by brand and decade, and it is an excellent tool for comparing typography clues against confirmed examples.

Number of labels and label size

Older garments, particularly pre-1970s pieces, often have a single label or at most two. From the 1980s onward, as regulations increased and brands became more label-assertive, the number of interior labels grew. Multiple labels (brand, care, content, size, country of origin as separate tags) point toward 1980s or later. A single woven label with no accompanying care or content label? Almost certainly pre-1972.

ZIP codes and addresses: the detail almost everyone misses

If a label shows a US manufacturer or retailer address, the format of that address tells you something. ZIP codes were introduced in the United States in July 1963. No ZIP code on a US address means the garment almost certainly predates mid-1963. It is a small but very specific clue, and it is one that is easy to overlook.

Zipper hardware: dating beyond the label

The zipper is not a label clue, but it belongs in this guide because it works alongside label reading to confirm a date. When labels have been cut out or are illegible, zipper hardware becomes particularly important.

• Metal Talon, Conmar or Crown zippers: strongly associated with pre-1970s garments.
• YKK zippers: YKK entered the US market from the mid-1960s onward. A YKK zipper does not confirm a post-1965 date with certainty, but combined with other clues it helps.
• Side zippers on womenswear: generally pre-1968, when centre-back and centre-front zips became the standard.
• Nylon coil zippers at centre-back: point toward mid-1960s onward.

The rule here, which I find very useful: revival styles copy old silhouettes, but they almost never copy old hardware. If a garment looks 1950s but has a modern plastic YKK zip, it is either a reproduction or a significantly altered piece. Trust the hardware over the cut when they disagree.

Brand-specific label evolution: Ralph Lauren, Tommy Hilfiger and Lacoste

General rules are useful everywhere. But for the brands we handle every day, it helps to go deeper. Here is what I look for.

Ralph Lauren

Ralph Lauren launched in 1967, so anything claiming to be Ralph Lauren from before that date is simply impossible. The earliest Polo by Ralph Lauren labels, from the late 1960s and early 1970s, are simple. White embroidery on a navy background, just the brand name, no polo player logo yet, no elaborate crest.

The polo player logo became more prominent through the late 1970s. By the 1980s the labels became larger and more elaborate, often featuring the full brand name and sometimes the retailer name. This "big label" era of the 1980s and early 1990s is one of the most collectible periods. A large, prominently woven label with the Polo crest in detail is almost certainly from this decade.

Sub-lines are also very useful for dating. Polo Sport launched in 1993. Polo Country was originally labelled just "Country" before the mid-1990s. Polo Jeans Co. was established in the late 1990s and discontinued in 2006. Lauren Ralph Lauren launched in 1996. If you see any of these sub-line names, you have an immediate earliest-possible date.

"Made in USA" on a Ralph Lauren piece is a strong indicator of pre-1990s production. Most production moved overseas through the 1990s. On authentication: the stitching on a genuine vintage Ralph Lauren woven label is consistent and tight. On fakes, the embroidery often looks uneven, the navy background is the wrong shade, or the font proportions are slightly off. The label should feel substantial, not thin or papery. I have written more about this in my guide on how to spot fake embroidered logos on vintage jackets, which covers these physical tells in much more detail.

Tommy Hilfiger

Tommy Hilfiger as a brand launched in 1985. So any "Tommy Hilfiger" label from before that year is not genuine. The earliest labels are relatively understated. The large red, white and blue flag logo labels are associated with the 1990s, which is the era most collectors focus on. Those bold, oversized flag labels on rugby shirts, windbreakers and knitwear are the core of the vintage Tommy market today, and good examples in excellent condition regularly reach €60 to €150 depending on the piece.

The 1990s Tommy Hilfiger label often features the full brand name with "Tommy Hilfiger" in the distinctive block lettering above a smaller flag logo. By the 2000s the labels became more subdued as the brand repositioned itself. So a loud, prominent flag label is actually a good sign of the more desirable 1990s era.

Lacoste

Lacoste was founded in 1933, but the crocodile logo has changed subtly over the decades. Older crocodiles (pre-1970s) tend to be embroidered with slightly more detail and with a more rounded, chunkier body profile. From the 1970s onward the crocodile became more stylised and uniform.

"Made in France" is one of the clearest dating signals for Lacoste. French production dominated through the 1970s and into the 1980s. By the 1990s, production had shifted significantly to countries like Peru, Morocco and later Southeast Asia. A "Made in France" Lacoste is almost certainly pre-1990s, and often earlier. Combined with a written care label (not symbol-only), you can usually place a "Made in France" Lacoste piece confidently in the 1970s to early 1980s. Those are the pieces I consider genuinely worth buying for quality as well as collectibility.

What to do when the label is missing

Labels get cut out. Labels fade completely. Labels fall off. It happens all the time, and it does not mean the garment is undatable. When the label is gone, I look at construction.

• Single-needle stitching on the side seams and hems: more common in older, higher-quality garments. Many post-1990s mass-market pieces use chain stitching or overlocked seams.
• Flat-felled seams: a hallmark of quality construction, common in older American-made shirts and workwear.
• Button quality: genuine shell buttons (slightly irregular, warm-toned) versus plastic buttons (uniform, slightly cold and too perfect). Shell buttons were standard on quality shirts through the 1980s and are still used on high-end pieces today.
• Zipper hardware: as covered above. Metal Talon or Conmar zippers are a strong indicator of pre-1970s production.
• The overall silhouette: useful as a last resort, but revival styles make this unreliable on its own. When the silhouette agrees with the construction clues, you can be confident. When they disagree, trust the construction.

I also pay attention to whether the label has been deliberately removed. A cleanly cut label in a garment that otherwise has intact stitching can be a red flag. Occasionally, labels are removed to hide a brand or a size, which is worth knowing before you buy.

A practical step-by-step process for dating any vintage garment

This is the exact sequence I use. It takes about sixty seconds once you have practised it a few times.

1. Find all the labels first. Flip the garment. Check the back neck, the side seam, the waistband and the inside front placket. Count how many labels there are before you read any of them.
2. Look for a copyright year or date code. If one is present, note it as your floor date.
3. Check for a care label. Present or absent? If absent on what appears to be an American garment, you are likely looking at pre-1972. If present, note whether it is written words only, words plus symbols, or symbols only.
4. Read the fabric content. Listed or not listed? No listing points toward pre-1960 for US pieces.
5. Find the RN or WPL number. Count the digits. Five digits points toward 1960s to 1970s registration. Six digits suggests 1980s or later. Look it up on the FTC database if you want the company name.
6. Check for a union label. ILGWU or ACWA. If present, use the design to narrow the era.
7. Read the country of origin. Does the country still exist under that name? If not, you have a very specific date range.
8. Check the address format. ZIP code present or absent? No ZIP code means pre-July 1963 for US addresses.
9. Look at the label itself. Woven or printed? Single label or multiple? Large and brand-assertive or small and understated?
10. Check the zipper hardware. Metal Talon, Conmar or Crown suggests pre-1970s. YKK or nylon coil suggests mid-1960s onward.
11. Combine all your clues. The newest clue sets your floor date. Give yourself a decade range and note your evidence.

For a deeper look at how this process applies specifically to authenticity checking (not just dating), I have written a companion guide on how to read vintage clothing labels and tags for authenticity which goes further into the authentication side of things.

A quick reference table: label clues and what they mean

Label clue	What it tells you
No care label (US garment)	Strongly pre-1972
Written care instructions only	1972 to mid-1990s
Care symbols with no words (US)	1997 or later
No fabric content listed (US)	Pre-1960
Five-digit RN number	Company registered 1952 to roughly 1980
Six-digit RN number	Company registered 1980s or later
ILGWU "Look for the Union Label"	1975 to 1995
ILGWU red, white and blue shield	1959 to 1974
Made in West Germany	1949 to 1990
Made in Occupied Japan	1945 to 1952
Made in Yugoslavia	1929 to 1992
No ZIP code on US address	Pre-July 1963
Woolmark symbol	1964 or later
Metal Talon or Conmar zipper	Strongly pre-1970s
Heat-transfer or tagless label	Strongly post-2000
Made in France (Lacoste)	Strongly pre-1990s, often earlier
Made in USA (Ralph Lauren, Tommy)	Likely pre-1990s

What does this mean for value?

Dating a garment accurately has a direct impact on what it is worth, and what you should pay for it. A generic secondhand shirt from the 1990s might be worth €15 to €25. The same shirt with confirmed 1970s dating from multiple label clues, union label intact and made in the USA, can easily be worth €60 to €100 or more in the right condition. A "Made in France" Lacoste polo from the 1970s in excellent condition is in a different category entirely from a 2005 Lacoste polo.

I am not saying age alone equals value. A mint condition 1990s Tommy Hilfiger rugby shirt with the full flag label is more desirable to many buyers than a worn 1970s American-made shirt from an obscure brand. But being able to date accurately means you can price honestly, buy confidently, and sell with credibility. That matters whether you are a collector, a reseller, or simply someone who wants to know what they are actually buying.

If you enjoy this kind of hands-on research as much as I do, then you will probably enjoy browsing what we have put together at Revaleur. Every piece in the shop has been personally sourced, dated and checked. No guesswork, no vague "circa vintage" descriptions. Just good quality secondhand pieces from brands worth wearing, priced honestly and described accurately.