Watch List notes:

SELEUCIS and PIERIA, Antioch. Gaius (Caligula), with Agrippina Senior. AD 37-41. AR Tetradrachm (24mm, 15.08 g, 12h). Dated RY 2 (AD 37/8). Laureate head of Gaius right / Draped bust of Agrippina Senior right; B (date) above ET to right. Prieur 64; McAlee 223; RPC 4165. Toned, scratches. Good Fine. Very rare, five known to Prieur, and five in CoinArchives.

From the Michel Prieur Collection. Ex Künker 124 (16 March 2007), lot 8827; Kölner Münzkabinett 47 (21 November 1988), lot 262; Lanz Graz V (1 December 1975), lot 418.