here's a decent GENIO coin I just added to my London trays.
Constantine I
A.D. 307- 310
25x26mm 6.7g
IMP CONSTANTINVS P AVG; laureate and cuirassed bust right.
GENIO POP ROM; Genius standing left, tower on head, loins draped, r. holding patera, l. cornucopiae.
In ex. PLN
RIC VI London 104 corr.; LMCC 5.04.004
