Richard III. 1483-1485. AR Groat (25mm, 2.65 g). Type 3. London mint; issue mark: halved sun and rose 2. Struck 1484-1485. 

RICARD' DI' GRA' REX' AnGL (Z retrograde) FRAnC, Crowned facing bust within tressure of arches.
POSVI DEVM A DIVTOR MEVM CIVITAS LONDON in two circles around long cross pattée; triple dots in quarters. 

Lockett I 1655; North 1680; SCBC 2158. 

With permission of cngcoins.com, auction 498, Lot 637, Aug 2021