Justinian I. 527-565. Æ Follis (40mm, 23.40 g, 12h). Cyzicus mint, 1st officina. Dated RY 13 (539/40). Helmeted and cuirassed bust facing, holding globus cruciger and shield; cross to right / Large M; cross above, date across field; A//KYZ. DOC 165a; MIBE 120a; SB 207. Green and brown patina, minor roughness. Near VF.