Watch List notes:

EGYPT, Alexandria. Quietus. Usurper, AD 260-261. Potin Tetradrachm (21mm, 11.29 g, 12h). Dated RY 1 (AD 260/61). A K T Φ IOVN KOVHTOC Є CЄB, laureate, draped, and cuirassed bust right / Eagle standing left, wings open, wreath in its beak; L A (date) to lower left. Köln 3013-4; Dattari (Savio) 5382; K&G 95.1; Emmett 3788.1. VF, dark brown patina with traces of green.

Ex Classical Numismatic Auctions XXI (26 June 1992), lot 538.