Pennyweight.

London hallmark date letter “K”: which year?

Short answer

The letter K on a London hallmark can be any of these years, depending on its case and typeface: 1785–1786 (lowercase roman); 1805–1806 (uppercase roman); 1825–1826 (lowercase roman); 1845–1846 (uppercase gothic); 1865–1866 (lowercase gothic); 1885–1886 (uppercase roman); 1905–1906 (lowercase roman); 1925–1926 (lowercase gothic); 1945–1946 (uppercase sans-serif); 1965–1966 (lowercase cursive); 1984 (uppercase roman, unified cycle); 2009 (lowercase roman, unified cycle).

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

Candidates for K at London

YearsLetter styleCycleNote
1785–1786lowercase romanLondon cycle
1805–1806uppercase romanLondon cycle
1825–1826lowercase romanLondon cycle
1845–1846uppercase gothicLondon cycle
1865–1866lowercase gothicLondon cycle
1885–1886uppercase romanLondon cycle
1905–1906lowercase romanLondon cycle
1925–1926lowercase gothicLondon cycle
1945–1946uppercase sans-serifLondon cycle
1965–1966lowercase cursiveLondon cycleShort cycle: the t of 1974 ends on 31-12-1974.
1984uppercase romanAll UK offices, from 1975
2009lowercase 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 K at other offices: Birmingham, Sheffield, Edinburgh, Chester, Glasgow.

All London cycles

Frequently asked

What year is the letter K on a London hallmark?

It depends on the shape of the letter: 1785–1786 (lowercase roman); 1805–1806 (uppercase roman); 1825–1826 (lowercase roman); 1845–1846 (uppercase gothic); 1865–1866 (lowercase gothic); 1885–1886 (uppercase roman); 1905–1906 (lowercase roman); 1925–1926 (lowercase gothic); 1945–1946 (uppercase sans-serif); 1965–1966 (lowercase cursive); 1984 (uppercase roman, unified cycle); 2009 (lowercase roman, unified cycle).

Sources

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