Watch List notes:

Marcus Aurelius (161-180). AE Sestertius, 172-173 AD. Obv. M ANTONINVS AVG TR P XXVII. Laureate, draped and cuirassed bust right. Rev. [IMP VI COS III] SC. Mercury standing left on pedestal, holding caduceus and purse, within a tetrastyle temple. On timpanum, a tortoise, cock, ram, caduceus, winged helmet and purse. RIC 1074. C. 534. AE. g. 25.32 mm. 29.00 R. A rare and very interesting architectural type. Glossy brown patina. F.