Serdica in Thracia, 198-217 AD., Caracalla, Tetrassarion, Ruzicka 123.

Serdica in Thracia, Caracalla, 198-217 AD.,
Tetrassarion / 4 Assaria / Æ 30 (29-30 mm / 18,83 g), brass, axes about coin alignment ↑↓ (ca. 200°),
Obv.: AVT K M AVPH CEVH - ANTΩNEINOC , laureate head of Caracalla facing right.
Rev.: OYΛΠIAC - CEPΔIKHC , Hades-Serapis, kalathos on head, enthroned left, right hand outstretched towards three-headed Cerberos to left, left hand holding sceptre.
Leon Ruzicka, The Coinage of Serdica, 123 ; Ruzicka, Num.Z. 48 (1915) p.27, no. 123 (Abramoff ; Mionnet Supp. II, 1655 citing Arigoni Museum II, table XV 179) .