Caracalla and Plautilla, AE33 of Knidos, Caria. 17.17 g. AD 202-205. 

AY K M ANTWNINOC FOYRBIA PLAYTILLA, Laureate, draped and cuirassed bust of Caracalla right, facing draped bust of Plautilla left. Countermark: laureate head right (Howgego 83). KNIDIWN, Aphrodite in bashful pose standing front, holding out drapery that falls behind amphora at foot, facing Apollo standing left, resting left arm on lyre set on column. 

Waddington 2335; Paris 544.

With permission of Leu Numismatik Auction 4, Lot 515, June 2018