My immediate reaction was that this was a plate off of a 1943-4 rebuild by Morris Commercial Cars Ltd in Adderley Park, Birmingham. I then thought that this was originally a 2-pounder Portee or Predictor that was rebuilt to either "normal" or airportable FAT. But now I wonder if it was a rebuild on a C8/FAT?
The photos I had from the Parachute Regiment museum came to mind:
http://www.mapleleafup.org/forums/sh...ghlight=morris