Lot Essay
The mark of a boy's head with the numeral 2 is believed to be a standard mark for 20k gold, in use soon after the Revolution, circa 1793, and for some time thereafter. For a discussion of this mark, see: A. Somers Cocks & C. Truman, The Thyssen-Bornemisza Collection: Renaissance Jewels, Gold Boxes and Objects de Vertu, 1984, no. 81, p. 242-44.