037. Hourglass hallmark with the letters FNB

Hourglass hallmark with the letters FNB (for Fabrique Nationale de Besançon), the whole surrounded by a border. For watchmaking in Besançon, large works in 750/000 gold or 800/000 silver. Besancon 1800-1821. The information about the hourglass hallmark with the letters FNB and the other illustrations of hallmarks on this website come from the book Traditional […]