Caracalla, 198-217 AD. AE Sestertius. Isis and the Emperor Reverse. Very Rare

Caracalla, 198-217 AD. AE Sestertius, 28 mm, 22.15 g. Obv: Laureate, cuirassed and draped bust right of Caracalla. Rev: Caracalla in military dress, standing left, holding spear with foot on crocodile; opposite him, Isis advances right, holding out two grain ears in right hand, sistrum in left. RIC 544 (R2), Coh. 334var. Very Rare.