Free Tool

Hermès Blind Stamp Decoder

Enter the date letter from your Hermès Birkin, Kelly, Constance, or Picotin blind stamp to instantly look up its production year — from 1945 to 2024.

Enter your blind stamp letter

The blind stamp is a small embossed letter (usually with a craftsman code nearby) found on the leather interior flap or under the strap. Enter the single date letter and select its border style.

Stamp border style

A date stamp alone does not prove authenticity.

High-quality counterfeits can replicate correct blind stamps. Always verify leather grain, stitching tension, hardware weight, and the craftsman code alongside the date stamp. Get a professional authentication →

Hermès Blind Stamp Eras & Formats

Hermès has used four distinct date-stamp systems since 1945. Each era uses a different border style around the letter, making it possible to identify the decade at a glance.

EraStyle
1945–1970Plain letter
1971–1996Letter in circle ○
1997–2014Letter in square □
2015–presentPlain letter (new sequence)

Full Hermès Date Stamp Reference (1945–2024)

Complete lookup table of every Hermès blind stamp letter and its corresponding production year, including the circle and square eras.

YearStampStyle
1945APlain letter
1946BPlain letter
1947CPlain letter
1948DPlain letter
1949EPlain letter
1950FPlain letter
1951GPlain letter
1952HPlain letter
1953IPlain letter
1954JPlain letter
1955KPlain letter
1956LPlain letter
1957MPlain letter
1958NPlain letter
1959OPlain letter
1960PPlain letter
1961QPlain letter
1962RPlain letter
1963SPlain letter
1964TPlain letter
1965UPlain letter
1966VPlain letter
1967WPlain letter
1968XPlain letter
1969YPlain letter
1970ZPlain letter
1971ACircle ○
1972BCircle ○
1973CCircle ○
1974DCircle ○
1975ECircle ○
1976FCircle ○
1977GCircle ○
1978HCircle ○
1979ICircle ○
1980JCircle ○
1981KCircle ○
1982LCircle ○
1983MCircle ○
1984NCircle ○
1985OCircle ○
1986PCircle ○
1987QCircle ○
1988RCircle ○
1989SCircle ○
1990TCircle ○
1991UCircle ○
1992VCircle ○
1993WCircle ○
1994XCircle ○
1995YCircle ○
1996ZCircle ○
1997ASquare □
1998BSquare □
1999CSquare □
2000DSquare □
2001ESquare □
2002FSquare □
2003GSquare □
2004HSquare □
2005ISquare □
2006JSquare □
2007KSquare □
2008LSquare □
2009MSquare □
2010NSquare □
2011OSquare □
2012PSquare □
2013QSquare □
2014RSquare □
2015TPlain letter (new sequence)
2016XPlain letter (new sequence)
2017APlain letter (new sequence)
2018CPlain letter (new sequence)
2019DPlain letter (new sequence)
2020YPlain letter (new sequence)
2021ZPlain letter (new sequence)
2022UPlain letter (new sequence)
2023BPlain letter (new sequence)
2024WPlain letter (new sequence)

Where is the blind stamp?

On a Birkin or Kelly, the blind stamp is typically found on the interior leather flap (under the main closure) or stamped into the leather beneath the handle. It usually appears as two separate characters: a date letter and a craftsman code (a letter identifying the individual artisan). Only the date letter corresponds to the year of production.