1 Noble - Edward III Treaty period, Calais mint

The Treaty period designation marks a precise political moment: following the Treaty of Brétigny in 1360, Edward III abandoned his formal claim to the French throne, and the coinage was revised accordingly — the French fleurs-de-lis were dropped from the royal title on the legend. The Calais mint, established in 1363 specifically to process the enormous bullion flows from English wool staple revenues, struck these nobles alongside London throughout this period.

Calais issues are distinguishable from London strikes by mintmark and the presence of a small pellet in the hull of the ship, among other diagnostic points catalogued under the North varieties.