Buyers beware! In all likelihood, those are not made by C&J. CT shoes are made by Loake, in this case to 1880-standards. Pully tab in leather rather than canvas, seams in general and the stubbier last are tell-tale signs that it's a "fake"/copy/what have you. Retail is somewhere around 200£, solid boots, but not the Conistons we all love.
I was looking at the StC boots on eBay and looks to me like they would fit closer to a 12 US as they are labeled 11UK. I am an 11.5US in most lasts and wear a 10.5UK in the classic StC lasts which tend to run bigger. Anyway just an observation because they are nice.