The Empire of Nicaea, John V, AR Half-Stavraton or Quarter-Hyperpyron, 4.03 g). 

St. Demetrius, nimbate, riding horse galloping right. 
Facing crowned and nimbate bust of John V holding cross-
headed sceptre, dot in left field. 

DOC 1298-1300; PCPC 328; Sear 2511.
Very rare. Good fine.

With kind permission of LHS Numismatik AG.