- Dated ancient Byzantine Empire coin from the reign of Emperor Justinian I the Great (527-565 CE), minted 541/542 CE, 22.81g, 40mm.
- Denomination M = 40 nummia = 1 follis, Constantinople mint (CON), officinia Delta.
- Sear Byzantine Coins 163.
- Obverse: D N IVSTINI-ANVS, Helmeted, cuirassed bust of Justinian facing, globus cruciger in right hand, shield decorated with horsman in left hand, cross in right field.
- Reverse: Large M (mark of value), A/N/N/O to left, Xu (date = reign year 15) on right, cross above, Delta (officina) below, CON (mintmark) in exergue.
- Certified by NGC to ChXF, Strike 4/5, Surface 3/5.
- Pedigree: From the Collection of a Philhellene, Ex. CNG, Auction 45 (18 March 1998), lot 2434.