Camulodunum operating in Camulodunum in the First, Second and Third centuries are identified as immigrants from the Rhine Valley and East Gaul, including the Samian potter "Minuso" from Trier who also operated in other British towns, "Miccio", the mortaria potter "G. Attius Marinus" and several men called "Sextus Valerius". Pottery made in Camulodunum can be found across the East of England, and as far away as Eboracum. One of the most famous examples of locally made pottery is the "Colchester Vase" (c. 200), which depicts combat between gladiators called Memnon and Valentinus. As well as pottery, ceramics produced in Camulodunum also
A Town Called Mercy called the Gunslinger. However, the Gunslinger is a product of experiments by Jex to win a civil war on his planet, and the Doctor is unsure of what is the right thing to do. Showrunner Steven Moffat pitched the Wild West theme to Whithouse when thinking of ways to give each episode a distinct theme. Whithouse further developed the theme, including classic Western tropes and a sympathetic villain. "A Town Called Mercy" and the previous episode "Dinosaurs on a Spaceship" were the first to enter production for the seventh series. Much of the episode was filmed in March 2012 in