Decius - Augustus of Imperium Romanum from 249 to 251
Caesar Gaius Messius Quintus Traianus Decius Augustus was Roman Emperor from 249 to 251.

Around 245, Emperor Philip I entrusted Decius with an important command on the Danube. By the end of 248 or 249, Decius was sent to quell the revolt of Pacatianus and his troops in Moesia and Pannonia - and after the collapse of the revolt, Decius reluctantly let the troops proclaim him Emperor.

Philip advanced against him and was killed at Verona, Italy, in September 249. The Senate then recognized Decius as Emperor, giving him the attribute Traianus in reference to the emperor Trajan.

In the last year of his reign, he co-ruled with his son Herennius Etruscus until they were both killed in the Battle of Abritus against the Goths.
Decius
Emperor Decius of the Roman Empire

(1) Decius 249-250 AD
Obverse: laureate, draped and cuirassed bust right from behind; Α Κ Γ Μ Κ ΤΡΑΙΑΝΟС ΔEΚΙΟС EV
Reverse: Athena seated left, wearing helmet, holding scepter and Nike with wreath; L_A
Ref: Dattari 5075; Geissen 2812; Kampman...
(2) Decius 250-251 AD
Obverse: laureate, draped and cuirassed bust right from behind; AVT Κ Γ ΜE ΚV ΤΡΑΙΑΝΟС ΔEΚΙΟС CEB / ··
Reverse: eagle standing left on palm; ΔHMAPX EΞOYCIAC / S C
Ref: McAlee 1126b; Prieur 578
(3) Decius July-December 250 AD
Obverse: IMP CMQ TRAIANVS DECIVS AVG - Radiate, draped and cuirassed bust right
Reverse: ABVNDANTIA AVG - Abundantia standing right, pouring out cornucopia
Ref: Sear 9364, RIC 10b, RSC 2
(4) Decius 250 AD
Obverse: IMP C M Q TRAIANVS DECIVS AVG - Radiate, draped and cuirassed bust right
Reverse: VICTORIA AVG, Victory advancing left, holding wreath and palm
Ref: Sear:9387 RIC:29c
(5) Decius 250-251 AD
Obverse: laureate, draped and cuirassed bust right from behind; IMP TRAIANVS DECIVS AVG
Reverse: Dacia holding bundle of rice and short scepter standing half-left between lion and eagle, PROVIN_C_IA DACIA / AN V
Ref: AMNG (Pick) Ref: 39; Pick-Martin Re...
(6) Decius 250-251 AD
Obverse: IMP CM Q TRAIANVS DECIVS AVG, cuir. bust with rad. head right
Reverse: DACIA , Dacia standing left, holding draco standart
Ref: RIC 12b
(7) Decius AD 250-251
Obverse: IMP CAE TRA DECIVS AVG, radiate, draped and cuirassed bust right
Reverse: DACIA FELIX, Dacia standing left, holding standard
Ref: RIC 37c
(8) Decius 249 AD
Obverse: IMP C M Q TRAIANVS DECIVS AVG, Bust of Decius facing right, wearing crown, cuirass, and drapery
Reverse: GENIVS EXERC ILLVRICIANI, Genius, polos on head, standing facing, head left, holding patera and cornucopia; standard in right field
Ref: RIC IV Trajan Decius 16c
(9) Decius 249-251
Obverse: IMP C M Q TRAIANVS DECIVS AVG, Radiate, draped and cuirassed bust right
Reverse: PANNONIAE, The two Pannoniae, veiled, standing front, turning right and left away from one another; each wears robe reaching to feed and holds standard; the one on right raises right hand.
Ref: RIC IV, p. 122, 21b; C. 86.
(10) Decius 249-251 AD
Obverse: Laureate, draped and cuirassed bust right from behind; AY ΚE Γ ΜEC ΔΚOY ΔEΚΙ ΤΡΑΙΑΝΟС CE / Π__Π
Reverse: Dionysos standing left, holding grapes and thyrsus, panther left head turned back; TAPCOV M_H_TPOΠOΛEΩ_C // A / M / K __ Γ / B
Ref: Cop 402; RPC online Volume IX, № 13...
(11) Decius 249-251
AE 39 Tarsos
Obverse: Radiate draped & cuirassed bust right π-π "AV KAI G MEC KVIN DEKIOC TRAIANOC"
Reverse: Perseus standing left holding head of Medusa, facing fisherman Dictys standing right with fishing pole from which hang a fish and a basket. "TAPCOV MHTPOπO AEΩC"
Ref: None provided
(12) Decius 250 AD
Obverse: radiate, cuirassed bust right from behind; IMP C M Q TRAIANVS DECIVS AVG
Reverse: Dacia standing left, holding draco standard or vertical staff surmounted by ass's head; D_ACIA
Ref: SRCV III 9368, RSC IV 16, RIC IV 12...
(13) Decius 250 AD
Obverse: radiate, cuirassed bust right from behind; IMP C M Q TRAIANVS DECIVS AVG
Reverse: the Two Pannoniae, veiled, standing front, each holds standard, the one on right raises hand; PA_NNONI_AE
Ref: RIC IV 21b, RSC IV 86, SRCV III 937...
(14) Decius 249-250 AD
Obverse: laureate, cuirassed bust right from behind; IMP C M Q TRAIANVS DECIVS AVG
Reverse: Dacia standing left holding staff topped with an wolf's head; D_A_CIA / S C
Ref: SRCV III 9399, RIC IV 112a, Cohen 1...
(15) Decius 250 AD
Obverse: radiate, cuirassed bust right from behind; IMP C M Q TRAIANVS DECIVS AVG
Reverse: Trajan Decius horse riding left, raising hand and holding scepter; ADVENTVS AVG
Ref: SRCV III 9366, RIC IV 11b, RSC IV 4
(16) Decius 249-250 AD
AR Antonini Rome
Obverse: radiate, cuirassed bust right from behind; IMP C M Q TRAIANVS DECIVS AVG
Reverse: Victory advancing left holding wreath and palm; VICT_ORIA AVG
Ref: SRCV III 9387, RIC IV 29c, RSC IV 1...
(17) Decius AD 249-250
Obverse: IMP C M Q TRAIANVS DECIVS AVG, laureate, draped and cuirassed bust right
Reverse: Mars standing left, holding shield and spear; S C across field
Ref: RIC 128; Sear 9433