Arcadius AE3, Cyzicus.

Obv: D N ARCADI-VS PF AVG, helmeted, pearl-diademed and
cuirassed bust facing, spear over right shoulder, shield 
behind left shoulder. 
Rev: CONCORDI-A AVGG, Constantinopolis seated facing, 
head right, foot on prow, holding Victory and sceptre; 

Mintmark SMKA.
RIC X, 94, rated Scarce

With permission of www.slaveycoins.com, March 2012.