Birmingham hallmark date letter “I”: which year?

The letter I on a Birmingham hallmark can be any of these years, depending on its case and typeface: 1781–1782 (uppercase roman); 1806–1807 (lowercase roman); 1832–1833 (uppercase gothic); 1857–1858 (uppercase roman); 1883–1884 (lowercase gothic); 1908–1909 (lowercase roman); 1958–1959 (uppercase cursive); 1983 (uppercase 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 I at Birmingham

Years	Letter style	Cycle
1781–1782	uppercase roman	Birmingham cycle
1806–1807	lowercase roman	Birmingham cycle
1832–1833	uppercase gothic	Birmingham cycle
1857–1858	uppercase roman	Birmingham cycle
1883–1884	lowercase gothic	Birmingham cycle
1908–1909	lowercase roman	Birmingham cycle
1958–1959	uppercase cursive	Birmingham cycle
1983	uppercase roman	All 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 I at other offices: London, Sheffield, Edinburgh, Chester, Glasgow.

All Birmingham cycles

Frequently asked

What year is the letter I on a Birmingham hallmark?

It depends on the shape of the letter: 1781–1782 (uppercase roman); 1806–1807 (lowercase roman); 1832–1833 (uppercase gothic); 1857–1858 (uppercase roman); 1883–1884 (lowercase gothic); 1908–1909 (lowercase roman); 1958–1959 (uppercase cursive); 1983 (uppercase roman, unified cycle).

Sources

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