1 Penny - Edward I Sterling type: class 3g

Class 3g sits within the broader recoinage program Edward I launched in 1279 — one of the most systematic monetary reforms medieval England had seen, replacing the clipped and debased coinage of Henry III with a uniform sterling standard enforced by severe penalties for clipping. The 3g classification is part of the dense sub-typing work done largely by L.A. Lawrence and later refined by Ian Stewart, distinguishing dies by subtle changes to the crown and lettering that accumulated rapidly as Edward's mints pushed through enormous volumes.

London and Canterbury were the primary issuing mints for this class. The 1279–1281 window saw output from ecclesiastical mints at Durham and Bury St Edmunds as well, each leaving identifiable die characteristics.