Watch List notes:

ISLAMIC, Time of the Rashidun. Pseudo-Byzantine types. Time of Uthman ibn Affan, AH 24-35 / AD 644-656. Fals (Bronze, 22 mm, 2.57 g, 7 h), uncertain Syrian mint, imitating Constans II follis of year 3. IMPER B COΛSS Crowned, bearded and draped facing bust with the features of Constans II, holding globus cruciger in his right hand. Rev. Large M between A/N/A and II/I; below, NEOU. Album 3507. MIB X18 (same dies). Pottier, Schulze & Schulze, Class III.1a. Rare; green glossy surfaces. Very fine.