1/4 Noble - Edward III Treaty period, Calais mint

The Treaty period designation marks the years following the Treaty of Brétigny (1360), during which Edward III dropped his claim to the French throne in exchange for full sovereignty over an expanded Aquitaine — a bargain he later repudiated. The Calais mint, captured in 1347 after an eleven-month siege, operated as England's continental production facility specifically to handle the enormous bullion flows from French ransoms and wool staple revenues.

The Calais quarter noble of this period is distinguished from London issues by a small pellet or mark in the manuscript — cross-referencing Spink 1512 against North 1245 remains necessary to confirm attribution with confidence.