Richard III. 1483-1485. AR penny, London. type 2b. 0.7 g. mintmark: boar's head. 

RICARD DI GRA REX ANGL, crowned head facing, boar's head above.
CIVITAS LONDON, Plain cross with three dots in each quarter. 

North 1684; Seaby 2165; Friedberg 533.

Sold by Dix Noonan Webb Ltd - Auction 193, Lot 369, July 2021