Constans AE follis of Thessalonica. Struck AD 347-348. 16.5 mm, 1.77 g.  

CONSTANS P F AVG, rosette-diademed, draped and cuirassed bust right.
VICTORIAE DD AVGG Q NN, two Victories standing, facing each other, each holding wreath and palm branch (palm branches not always visible). 
Centering dot in centre.
Mintmark SMTSB. 

RIC VIII Thessalonica 101; LRBC 861. 

With permission of Agora Auctions auction 103, Lot 347, Dec 2021.