Serdica - A settlement in Thrace
Serdica was originally a Thracian settlement, probably named after the Celtic tribe Serdi that had populated it.

Around 29 B.C., it was conquered by the Romans and renamed Ulpia Serdica. When Emperor Diocletian divided the province of Dacia into Dacia Ripensis (on the banks of the Danube) and Dacia Mediterranea, Serdica became the capital of Dacia Mediterranea. Serdica was of moderate size, but magnificent as an urban concept of planning and architecture, with abundant amusements and an active social life.

Dates of operation: 272 - 282, 303 - 308 and 313 - 314. Mintmarks: SD, SER, SERD, SMSD.

Modern location: Sophia, Bulgaria

(1) Aurelian 272 AD
Obverse: IMP C AVRELIANVS PF AVG, Radiate and cuirassed bust right
Reverse: RESTITVT ORBIS, Female figure standing right holding wreath in raised hand, facing Aurelian in military attire standing left his right hand extended, holding sceptre in left, mintmark KA dot gamma
Ref: Sear 11592v
(2) Aurelian 274-275 AD
Obverse: radiate, cuirassed bust right; IMP C AVRELIANVS AVG
Reverse: Fides, holding two ensigns facing radiate Sol holding a globe; PRO_VIDEN DE_OR / KAΔ
Ref: RIC V-1, 284 Serdica var; http://ww...
(3) Aurelian 273-274 AD
Obverse: radiate, cuirassed bust right; IMP AVRELIANVS AVG
Reverse: Emperor in military dress standing right, holding short sceptre in left hand, receiving a globe from Jupiter standing left, holding long sceptre in left hand; IOVI__CON_SER / P
Ref: LV 9802-24; RIC 260; http://www.ric...
(4) Aurelian 274 AD
Obverse: radiate, cuirassed bust right; IMP AVRELIANVS AVG
Reverse: Sol facing, head left, with right hand raised and holding globe in left; at feet to left a bound and captive in oriental dress; ORIE_NS AVG / P
Ref: LV 9885-9; RIC 276; http://www.ric....
(5) Aurelian 274 AD
Obverse: radiate, cuirassed bust right; IMP C AVRELIANVS AVG
Reverse: Sol standing left, with right hand raised and holding globe in left, right foot resting on a bound captive in oriental dress standing left; on the other side, another bound captive in oriental dress standing right, head turned left; ORI_ENS AVG / P
Ref: LV 9899-909; RIC 278; http://www.ri...
(6) Aurelian 274 AD
Obverse: radiate, cuirassed bust right; IMP C AVRELIANVS AVG
Reverse: Sol standing left, with right hand raised and holding globe in left, right foot resting on a bound captive in oriental dress standing left; on the other side, another bound captive in oriental dress standing right, head turned left; ORI_ENS AVG / P
Ref: LV 9899-909; RIC 278; http://www.ri...
(7) Aurelian 273-274 AD
Obverse: radiate, cuirassed bust right; IMP AVRELIANVS P AVG
Reverse: Emperor in military dress standing right, holding short sceptre in left hand, receiving a globe from Jupiter standing left, holding long sceptre in left hand; IOVI CON_SER / S
Ref: BNC p.394; RIC1st 264 var.; die mat...
(8) Aurelian IV – XI 274 AD
Obverse: radiate, cuirassed bust right; IMP AVRELIANVS AVG
Reverse: Sol advancing left, stepping on captive, raising hand and holding globe; seated captive on right; ORI_E_NS AVG / XXI·S·
Ref: RIC V-1, 279 Serdica, Cohen 145 htt...
(9) Aurelian summer 271 AD
Obverse: radiate, draped and cuirassed bust right; IMP AVRELIANVS AVG
Reverse: Aurelian in military dress standing right, receiving globe from Jupiter standing left, holding long scepter; IOVI CONSERVATORI / P
Ref: BNC 993; RIC1st 265 var. http://www...
(10) Florianus July 276 AD
Obverse: IMP C M ANNIVS FLORIANVS AVG, Bust of Florian facing right, wearing crown, cuirass, and drapery
Reverse: PROVIDEN DEOR, Fides standing facing right, holding standard in each hand, Sol standing facing left, hand raised and holding globe in left hand, star in between; KAA in exergue
Ref: RIC V Florian 111 var. (obv. insc.)...
(11) Probus 277 AD
Obverse: radiate bust left wearing consular robe, holding eagle tipped scepter in right hand; IMP C M AVR PROBVS P F AVG
Reverse: Sol facing in quadriga, head left, wearing chalmys, raising hand, holding whip; S_OL_I INVICTO / KAΓ
Ref: RIC V-2 Serdica 861