Watch List notes:

THESSALY, Magnetes. Augustus. 27 BC-AD 14. Æ Assarion (16mm, 3.63 g, 12h). [ΣΕΒΑΣΤ]ΟΣ around from bottom right, head right / [ΜΑΓ]ΝΗΤΩΝ around from right, the centaur Chiron advancing right, branch over the left shoulder, right hand extended forward; below, thunderbolt. RPC 1421 var. [different portrait; dolphin below on reverse]. Dark green patina, obverse slightly double struck. Fine. Banker's mark ("Z") on obverse. Very rare, a total of seven are known according to RPC, all in museum or institutional collections.

Ex BCD Collection (Triton XV, 3 January 2012), lot 426.1.