Roman Coin

This coin looks Roman is 15mm across and weighs 1.84 g. There is a head on one side, possibly a Roman Emperor and on the other side two solders facing each other. Below is what we think to be the same coin but in better condition.

Photograph by Brian Irwin

Constantine I, AE follis, Alexandria. 

CONSTANTI-NVS MAX AVG, laureate, draped and cuirassed bust right.
GLOR-IA EXERC-ITVS, two soldiers, holding spears and
resting hands on shields, standing facing each other,
one standard between them. 
S-R at upper left and right.
Mintmark SMALB

RIC VIII Alexandria 5.

From Dane's collection, Nov. 2014.