Pennyweight.

Sheffield hallmark date letters

Short answer

Sheffield date letters cover 1799 to 2026. Before 1975 a letter marks the year from July to July; the cycles below give each letter's year by its shape (case and typeface).

Sheffield: cycles before 1975

YearsLetters in orderStyleNote
1799–1824ENHMFGBASPKLCDRWOTXIVQYZUuppercase romanArbitrary order.
1824–1844abcdefghklmpqrstuvxzlowercase roman
1844–1868ABCDEFGHIKLMNOPRSTUVWXYZuppercase roman
1868–1893ABCDEFGHJKLMNOPQRSTUVWXYZuppercase sans-serif
1893–1918abcdefghiklmnopqrstuvwxyzlowercase gothic
1918–1943abcdefghiklmnopqrstuvwxyzlowercase roman
1943–1968ABCDEFGHIKLMNOPQRSTUVWXYZuppercase roman
1968–1975ABCDEFGuppercase cursiveCut short by the 1973 Act.

Since 1975: one cycle for all offices

From 1975 every UK assay office uses the same annual letter sequence, so the letter no longer says where the piece was assayed. The year now changes on 1 January.

FromLettersStyleNote
1975ABCDEFGHIKLMNOPQRSTUVWXYZuppercase roman
2000abcdefghjklmnopqrstuvwxyzlowercase roman
2025ABuppercase romanCurrent cycle (2025 A, 2026 B).

Look up one letter

A B C D E F G H I J K L M N O P Q R S T U V W X Y Z

Other offices

London · Birmingham · Edinburgh · Chester · Glasgow

Frequently asked

How do I read a Sheffield hallmark date letter?

Find the letter's shape (case and typeface) in the cycle tables for Sheffield. Each cycle runs 25 letters or fewer, one per year, and the letter changes in July each year before 1975.

What years does the Sheffield date-letter table cover?

1799 to 2026.

Sources

All sources are listed with the method on the sources page.