Shoe experts sizing of RL Crockett and Jones?

[braindoc]

I have a pair of RL Benton on the C&J 337 last that fit extremely well. They are marked 11 1/2 D. I suspect that this is US sizing but was wondering if anyone can confirm this? Also is the Polo "D" an C&J "E" or do they actually get them in "D" a la the polo EG's?
Thanks for any insights.
Regards,
Dan

 

[braindoc]

Bump up hoping for some expert opinions.
Thanks.

 

[Shikar]

That is 11.5D US sizing, I do love those shoes. The D/E debate may continue. The Polo C&J size up 1 from UK.

Regards.