Caracalla, AE34 of Antioch, Pisidia. AD 211-212. 28.37 g. 

IMP CAES M AVR ANTONINVS AVG, laureate head right.
CONCORD AVGVSTOR COL ANTIOCH around, SR below, Caracalla, togate, standing right, clasping hand of Geta, togate, standing left, altar between them. 

Unpublished with altar. Naumann 108, 481. (var of Krzy XXXI, 53; BMC 51; SNG France III 1145; Paris 104 and M3221 (this coin) etc).

With permission of Numismatik Naumann auction 108, lot 481, Oct. 2021.