Constantius II (337-361 A.D.) - AE3 1/2 Centenionalis  - 17.54mm, 2.78gr
Obverse - DN CONSTAN-TIVS PF AVG
Constantius, his pearl-diademed, draped and cuirassed bust right.
Reverse - FEL TEMP REPARATIO,
Radiate phoenix standing right on globe.
CONSB star in Exergue.
Constantius II
Minted at officina B in Constantinopolis (Istanbul, Turkey) between 346 and 350 A.D.
Reference:
Kent, J.P.C.,"Roman Imperial Coinage", Volume 8 (RIC), Constantinople, p454, nr. 93., Obverse Cs1/D3, Reverse PG
Sear, David R., "Roman Coins and their Values" (RCV 4th Revised Edition), p 338, nr.4008, variety from Constantinople.
Failmezger, V., "Roman Bronze Coins From Paganism To Christianity 294-364 A.D.", nr 413aCS
Carson, R.A.G., Hill, P.V., & Kent, J.P.C., "Late Roman Bronze Coinage",  Part II,  p86, nr. 2019
Van Meter, D., "Handbook of Roman Imperial Coins", p300, nr 44.
Suarez, R., "Encyclopedia of Roman Imperial Coins" (ERIC),  p494, nr.117 (B08, O13, R11, T53, M06)
Quality: Fine-