BITHYNIA. Koinon of Bithynia. Sabina, Augusta, 128-136/7. 'Sestertius' (Bronze, 34 mm, 25.15 g, 6 h). ϹΑΒЄΙΝΑ ϹЄΒΑCΤΗ Draped bust of Sabina to right, wearing stephane; to lower right, countermark: laureate and draped bust of Hadrian to right within oval incuse. Rev. [K]OI-NON / BEIΘYNIAC Octastyle temple set on base with two steps; between middle columns, one pellet; in pediment, Genius standing front, head to left, sacrificing out of patera over lighted altar with his right hand and holding cornucopiae in his left; below, prow to right. RG 53. RPC III online 1024.5 ( this coin ). For countermark, Howgego 64. Extremely rare. Very rough and with a scratch on the obverse and a flan fault from countermarking, otherwise, fine.

From the collection of Eric ten Brink, ex Savoca 25th Silver Auction, 16 September 2018, 454.