John VI and John V Cantacuzene, 1347-1353. AE stamenon 1347-1353, 1.61 g. 

Christ enthroned facing. 
John V and John VI standing facing and holding cross on long shaft between them. 

Sear 2534; LPC 9; PCPC 296. 
Very rare. Brown tone and about very fine

With kind permission of Numismatica Ars Classica, Oct. 2010.