Hello Hanno,
The same file on the following frame has a very good overhead shot of a CMP Number 11 cab?
http://imagen.britishpathe.com/scrip...00000009&sif=0
This must be a very early example of an Indian Pattern body on a CMP chassis, as distinct from a militarised civilan chassis.
I beleive the troops are Madras Sappers and Miners, as the type of turban they are wearing was I beleive unique to them.
Regards
Nick Balmer