Thracia, Serdica, Caracalla Ruzicka 245 Caracalla AD 198-217 AE 30, 16.6g obv. AYT KM AYR CEYH - ANTWNEINOC bust, draped, laureate, r. rev. OYLPIAC - CERDIKAC Asklepios, half-draped, standing frontal, feeding with r. hand snake coiling around rod set on ground left Ruzicka 245 (attribution by Curtis Clay) very rare, EF Serdica, today Sofia/Bulgaria. Ulpias was a venerating name of the city in honour of its founder Ulpius Trajan Contributed by Hans-Joachim, 2006.