Could any Roman experts here tell me what the letters/monograms are on either side of the bust on this coin of Caracalla? I know this is a different dynasty and a provincial to boot but someone here would know I suspect. This is from acsearch: RÖMISCHE MÜNZEN MÜNZEN DER RÖMISCHEN KAISERZEIT Antoninus III. Caracalla, 198-217 Æs, 215, Tarsos (Cilicia); 21,91 g. Büste r. mit Kleidung und Reif des Demiurgen//Kaiser steht l. und opfert über Altar. SNG Levante 1058. R Sehr schön OK I found they are Pi symbols> from this wildwinds- must be a mint mark of Cilicia? wildwinds: BMC 190 Caracalla AE 35mm of Cilicia, Tarsos. Laureate head right; P-P in fields / Veiled female figure wearing modius, standing right, between two temples viewed in perspective.
Just a conjecture, but I wonder if it is part of his titulature. Caracalla received the title of Pater Patriae (this would be πατήρ πάτρας in Greek) in AD 199. Perhaps this is a title.
