CNG - Bithynia, Nicaea. Gordian III. Æ 23mm

     Bithynia, Nicaea. Gordian III. 238-244 AD. Æ 23mm (5.68 gm).
     Radiate draped bust right; countermarked with a head / Athena
     standing facing, head left, holding patera and retrospear; shield
     at side. Cf. SNG Copenhagen 525; BMC -; Mionnet Supp. V pg. 147,
     852; Cf. Howgego 57 for countermark. Fine, light brown patina
     with some encrustation. 724954