Constantine I. AE follis. Alexandria. AD 310-337. Struck AD 329-330. 18mm, 3.08 g. 

CONSTAN-TINVS AVG, laureate head right.
PROVIDEN-TIAE AVGG, campgate, 11 layers, 2 beacons, star above.

Wreath in left field. 
I in right field.
Mintmark SMAL. 

RIC VII Alexandria 49; Sear 16275.

Rare, rated R4.

With permission of cngcoins.com, auction 241, Lot 611, Sept 2010
Ex RW collection, CNG 41, lot 1229, March 1997.