Watch List notes:

EGYPT, Alexandria. Aurelian, with Vaballathus. AD 270-275. Potin Tetradrachm (20mm, 8.73 g, 12h). Dated RY 1 of Aurelian and RY 4 of Vaballathus (AD 270/271). Laureate, draped, and cuirassed bust of Aurelian right; L A (date) across field / Laureate, diademed, draped, and cuirassed bust of Vaballathus right; L Δ (date) across field. Köln 3054-5; Dattari (Savio) 5422; K&G 106.69; Emmett 3914.1&4. Dark brown patina with traces of red, some roughness. Good VF.

From the Stein A. Evensen Collection. Ex Classical Numismatic Group Electronic Auction 184 (19 March 2008), lot 156.