Lot 9158. VF, 8.0g, countermarked PKA. Est $475. Claudius AE23 of Calchedon, Bithynia. Obv: TI KLAVDIOY KAISAPOS SEBASTOS, laureate head left Rev: KALCADONIWN, diademed, draped bust of Apollo right, lyre before. SGI 438cf. By permission of ancientcoinart.com, January, 2005.