Es un follis de Focas de la ceca de Constantinopla 5ª oficina:
Phocas. 602-610 AD. AE Follis. Constantinople. DM FOCAE PP AVG, crowned, mantled bust facing, holding mappa and cross (or mappa and eagle-tipped sceptre), sometimes with cross to left or cross to left and right, or star to left / Large XXXX, ANNO above, regnal year to right, mintmark CON and officina letter. SB 640, MIB 61-62. 576 combinations known.
http://wildwinds.com/coins/byz/phocas/sb0640.jpg
Un saludo
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