Nox83:
You may be using the same reference I am posting here, but in any case, Editions Heimdal published an excellent history of the Cossacks in 2000, details as follows.
Les Cosaques de Pannwitz 1942-1945
Author: Francois de Lannoy
ISBN 2 84048 131 6
Email:
Editions.heimdal@wanadoo.fr
Language is French/English, hundreds of excellent photos and well written text taking the story from the beginning to a very sad end.
While our mystery vehicle is not shown in the book, many, many other very interesting vehicles, tanks, weapons etc. are pictured and the quality is outstanding.
As to the mystery vehicle, I am still searching my photos but cannot come up with anything other than the chassis is certainly British but, what chassis?
Bill