Constantine II AE3. 

Obv: CONSTANTINVS IVN NOB C, laureate, cuirassed bust right 
Rev: GLOR-IA EXERC-ITVS, two soldiers holding spears and 
shields with one standard between them, o on banner.
Mintmark: CONS Theta. 

RIC VII Constantinople 138, rated R2

Contributed by Ars-Aeterna / David Suter, Switzerland, September, 2009