Constantine  I Magnus (307-337 A.D.) -  AE2 Nummus (Follis)- 23.53mm, 3.90gr
Obverse - CONSTANTINVS PF AVG
Constantine, his laureate and cuirassed bust right.
Reverse - SOLI INVICTO COMITI,
T-F (TEMPORA FELIX) in field, PTR in Exergue
Radiate Sol standing left, raising right hand, holding globe in left,
chlamys draped over left shoulder.

Minted in Treveri (Trier, Germany) between 310 and 313 A.D.
Reference:
Sutherland, C.H.V., "Roman Imperial Coinage", Volume 6 (RIC), Trier, p227, nr. 873
Failmezger, V., "Roman Bronze Coins From Paganism To Christianity 294-364 A.D.", nr 208CI
Sear, D.R., "Roman Coins and their Values" (RCV 4th Revised Edition), p326, nr. 3868, variety with  PTR mint mark
Van Meter, D., "Handbook of Roman Imperial Coins", p291, nr 63, variety Ol/15
Quality: Very Fine+