Colonia Agrippinensis - A settlement in Germania
Colonia Claudia Ara Agrippinensium was the Roman colony in the Rhineland from which the German city of Köln (Cologne) developed. It was the capital of the Roman province of Germania Inferior and the headquarters of the military in the region.

Between 9 and AD 30 the area of present-day Cologne was mainly a garrison. Legion I Germanica and the Legion XX Valeria Victrix were stationed nearby. The place of the initial Roman Castra was known as Apud Aram Ubiorum (At the Altar of the Ubii).

From AD 70 on the city had a strong city wall that was c. 8 meters in height and 2.5 meters wide. However, the remains of the Roman city wall that can still be seen today are from the 3rd century AD. The unwalled portions of the city were equal to a square kilometer. Its most important steles and grave goods are preserved in the Romano-Germanic Museum.

Modern location: Köln, Germany

(1) Gallienus 259-260 A.D.
Obverse: GALLIENVS P F AVG, radiate and cuirassed bust left, holding spear and shield.
Reverse: DEO MARTI, Mars standing left in tetrastyle temple, resting on shield and spear.
Ref: RIC 10
(2) Postumus 260-261 A.D.
Ref: RIC 89
(3) Postumus 262-265 A.D.
Obverse: IMP C POSTVMVS P F AVG, radiate, draped & cuirassed bust right
Reverse: MONETA AVG, Moneta standing left with scales & cornucopiae
Ref: RIC 75
(4) Postumus 259-268 A.D.
Obverse: IMP C POSTVMVS P F AVG, radiate and draped bust right
Reverse: SAECVLI FELICTAS, Postumus standing right with spear & globe
Ref: RIC 83
(5) Salonina 257-259 AD
Obverse: diademed bust on crescent right; SALONINA AVG
Reverse: Venus seated left, holding sceptre, reaching for child before her; VENVS F_ELIX
Ref: SRCV III 10655, RIC V 7 (Lugdunum)
(6) Salonina c. 257-258 AD
Obverse: diademed and draped bust on crescent right; SALONINA AVG
Reverse: nimbate Segetiae or Ceres facing in four-columned temple, both hands raised; DEAE SEGETIAE
Ref: Göbl MIR 902c, RIC V J5 (Lugdunum m...
(7) Tetricus I 272 AD
Obverse: radiate, cuirassed bust right; IMP TETRICVS P F AVG
Reverse: Laetitia standing left, holding wreath and anchor; LAETI_TIA AVG N
Ref: RIC V 90; Mairat 426-9; AGK 5b
(8) Tetricus II 273-274 AD
Obverse: radiate, draped and cuirassed bust right from behind; C P E TETRICVS CAES
Reverse: sacrificial implements: sprinkler, simpulum, jug, knife, and lituus; PIETAS AVGG
Ref: RIC V 255, SRCV III 11286
(9) Tetricus I | Imitation 273-274 AD
Obverse: radiate, draped and cuirassed bust right; IM VL TP(AV)CVS P F AVG
Reverse: Pax standing half left, holding branch and scepter; PADV_DIO
Ref: unofficial (RIC V 100, SRCV III 112...
(10) Victorinus Autumn 269 A.D.
Ref: RIC V-2 41
(11) Victorinus 268-270 A.D.
Obverse: IMP C VICTORINVS PF AVG, radiate, draped, cuirassed bust right
Reverse: INVICTVS, Sol walking left, holding whip, right hand raised, star in left field
Ref: RIC 114 (20)