Pennyweight.

Edinburgh hallmark date letter “M”: which year?

Short answer

The letter M on a Edinburgh hallmark can be any of these years, depending on its case and typeface: 1818–1819 (lowercase roman); 1843–1844 (uppercase gothic); 1868–1869 (uppercase sans-serif); 1893–1894 (lowercase gothic); 1917–1918 (uppercase roman); 1942–1943 (uppercase cursive); 1967–1968 (uppercase gothic); 1986 (uppercase roman, unified cycle); 2011 (lowercase roman, unified cycle).

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

Candidates for M at Edinburgh

YearsLetter styleCycleNote
1818–1819lowercase romanEdinburgh cycle
1843–1844uppercase gothicEdinburgh cycle
1868–1869uppercase sans-serifEdinburgh cycle
1893–1894lowercase gothicEdinburgh cycle
1917–1918uppercase romanEdinburgh cycle
1942–1943uppercase cursiveEdinburgh cycle
1967–1968uppercase gothicEdinburgh cycleThe S covers 1973 and 1974.
1986uppercase romanAll UK offices, from 1975
2011lowercase 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 M at other offices: London, Birmingham, Sheffield, Chester, Glasgow.

All Edinburgh cycles

Frequently asked

What year is the letter M on a Edinburgh hallmark?

It depends on the shape of the letter: 1818–1819 (lowercase roman); 1843–1844 (uppercase gothic); 1868–1869 (uppercase sans-serif); 1893–1894 (lowercase gothic); 1917–1918 (uppercase roman); 1942–1943 (uppercase cursive); 1967–1968 (uppercase gothic); 1986 (uppercase roman, unified cycle); 2011 (lowercase roman, unified cycle).

Sources

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