File:Colonia Camalodunensis Augusta.jpg

English: A bronze or copper alloy coin of Claudius—presumably an as, dupondius, or sestertius—from Speed's history of Great Britain. The reverse depicts the founding of the Roman colony at Colchester, established at Claudius's direction after Legion XX moved from Colchester to Gloucestershire in AD 49. This initial colony was subsequently massacred during the Boudican revolt in AD 60 or 61.

Speed notes "(10) With very great danger he passed the Seas, and ioining strength with his Lieutenant and Vespasian, they all together crossed the Riuer Thamisis, where presently they were encountred by the Britaines, who a while maintained the battaile very desperately, but in the end gaue place & fled, whom the Romanes pursued euen to their strong Camulodunum, then the seate of Adminius, Cunobelins sonne, as may aptly be coniectured by the Medul of Britannicus the Emperours darling, figured in the front of this Chapter; which City they surprised and fortified with their owne Garrisons, and the Emperour afterwards in the eleuenth of his raigne (as appeareth by the other coine) turned to a Colony of Romane Citizens. Claudius now disarming the Britaines, remitted further punishment either vpon their bodies or confiscation of their goods: The which his fauourable clemencie moued those distressed Britaines to such liking and loue, as they erected a Temple, and Alter in his name, and gaue him diuine honour, as a God: The rest, as vnable to resist, proffered their submissions, and promised a peaceable subiection vnder the Romans gouernment."

The coin was later copied in garbled form in William Camden's Britannia and other sources. The depiction of sulcus primigenius—the ritualized plowing of the planned course of the city wall for a new Roman colony—was a fairly common one on imperial Roman coins but, as early as 1807, it was being noted that the coin seemed to have vanished and to be otherwise unattested. Modern scholarship does not include any example of its type among Claudius's coins and it is unattested among the coins discovered at Colchester.