Maurice Tiberius, AE26 follis. AD 582-602. Carthage mint.

D N TIB MAVRICI PP AGVC, crowned and cuirassed bust facing, holding cross on globe and shield.

N-cross-M above XX-XX to left and right of a wreath or circlet of dots with a star in the centre, cross above. 
Mintmark KRT below. 

SB 556; DOC 243; MIB 116; Righetti Coll. sale 530 (this coin); Falbe 2 in Blätter f. Münzkunde 1836.
Very rare. 

With permission of cngcoins.com, auction 88, Lot 1553, Sept 2011