Pennyweight.

Sheffield hallmark date letter “C”: which year?

Short answer

The letter C on a Sheffield hallmark can be any of these years, depending on its case and typeface: 1811–1812 (uppercase roman); 1826–1827 (lowercase roman); 1846–1847 (uppercase roman); 1870–1871 (uppercase sans-serif); 1895–1896 (lowercase gothic); 1920–1921 (lowercase roman); 1945–1946 (uppercase roman); 1970–1971 (uppercase cursive); 1977 (uppercase roman, unified cycle); 2002 (lowercase roman, unified cycle).

Before 1975 the letter changes in July, so most letters span two calendar years. Compare the case and typeface with the table; the letter alone does not settle it.

Candidates for C at Sheffield

YearsLetter styleCycleNote
1811–1812uppercase romanSheffield cycleArbitrary order.
1826–1827lowercase romanSheffield cycle
1846–1847uppercase romanSheffield cycle
1870–1871uppercase sans-serifSheffield cycle
1895–1896lowercase gothicSheffield cycle
1920–1921lowercase romanSheffield cycle
1945–1946uppercase romanSheffield cycle
1970–1971uppercase cursiveSheffield cycleCut short by the 1973 Act.
1977uppercase romanAll UK offices, from 1975
2002lowercase romanAll UK offices, from 1975

Narrowing it down

Other marks and features on the piece can rule candidates out: see dating jewelry by construction features and the other UK hallmarks.

The letter C at other offices: London, Birmingham, Edinburgh, Chester, Glasgow.

All Sheffield cycles

Frequently asked

What year is the letter C on a Sheffield hallmark?

It depends on the shape of the letter: 1811–1812 (uppercase roman); 1826–1827 (lowercase roman); 1846–1847 (uppercase roman); 1870–1871 (uppercase sans-serif); 1895–1896 (lowercase gothic); 1920–1921 (lowercase roman); 1945–1946 (uppercase roman); 1970–1971 (uppercase cursive); 1977 (uppercase roman, unified cycle); 2002 (lowercase roman, unified cycle).

Sources

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