Watch List notes:

Constantinopolis Commemorative AE3/4. 330-333 AD. City Commemorative AE Follis. 2.82 g; 18 mm, 334-335 AD. Siscia mint. Mintmark BSIS in ex. RIC VII 224; B, RIC VIII Siscia 224; cf Sear 3890. A nice coin with good centering and strike. Dark green patina. Choice VF.