Magnia Urbica, AE antoninianus. Siscia mint, 283 AD. 

MAGNIAE VRBICAE AVG, draped bust right on crescent wearing stephane.
VENVS GENETRIX, Venus standing left, holding apple and
transverse sceptre, Cupid at her feet, reaching up to
her with both arms.
A in right field. 
Mintmark SMSXXI. 

RIC 350; Cohen 13. 

With permission of Numismatik Lanz, Munich.
Sold for 750 Euros.