Theodore II Ducas-Lascaris. AD 1254-1258. AE22 half tetarteron. Thessalonica. 22 mm, 3.6 g.

HAGIA ELENH in 5 lines in left field, St. Helena, crowned, standing front, holding patriarchal cross in left hand.
OATOC KONCTA, St. Constantine standing front, holding akakia and patriarchal cross. 

Sear Byz 2059; DOC 28; LBC 129. 

With permission of Numismatik Naumann auction 68, Lot 670, Aug. 2018.