Triton XX, Lot: 484. Estimate $750. Sold for $800. This amount does not include the buyer’s fee.

EGYPT, Alexandria. Julia Mamaea. Augusta, AD 222-235. Potin Tetradrachm (24mm, 13.90 g, 12h). Dated RY 13 of Severus Alexander (AD 233/4). IOY MAMAIA CЄB MHTЄ CЄB K CT, draped bust right, wearing stephane / Crowned and draped bust of Isis right; L IΓ (date) behind, palm frond before. Köln –; Dattari (Savio) 4496; K&G 64.114; Emmet 3211.13. Choice EF, dark gray-brown surfaces.

From the Dr. Patrick H. C. Tan Collection. Ex Hermanubis Collection (Classical Numismatic Group Electronic Auction 355, 15 July 2015), lot 418.