The Bovington Tank Museum was kind enough to send me some photocopy thumbnails of their inventory of Carden Loyd One-Man, and Vickers 1921 No.2 photos. Much thanks to the Bovington Tank Museum and David Fletcher, outstanding folk.
I am informed that, indeed, the Carden-Loyd One Man tank turret was capable of full traverse. A point of interest for myself and Centurion.