This is a common coin, but it is uncommonly well-preserved and fully silvered
Maximinus II
A.D. 312- 313
21mm 5.2gm
IMP C GAL VAL MAXIMINVS PF AVG; laureate head right.
GENIO AVGVSTI; Genius, modius on head standing left, chalmys across left shoulder, Serapis head in right hand, cornucopia in left hand; in left field star over N over palm branch, in right B.
in ex. ALE
RIC VI Alexandria 160b