Camulodunum colonia around Middleborough and a large group at Warren Fields and Oak Drive on the southern outskirts of the Sheepen site. Many of the kilns are of the oval "Colchester type", whilst tile kilns have larger rectangular chambers. Camulodunum produced many types of pottery, including decorated Samian pottery, mortaria, buff wares, single-handled ring-necked flagons, and, until c. 250, colour-coated wares. In the late 1st century amphorae, called "Camulodunum Carrots" for their shape and colour, were made in the colonia, and are found in thin numbers across Britain. The Samian industry, copying the East Gaullish style, was active for a time
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