Isn't the Larkspur battery box also used in the Daimler Ferret and Alvis Saladin/Saracin vehicles?
I'd also be interested in acquiring one or four of the boxes for my Larkspur Radio frame as used in the some of the WWII vehicles in the post war period, Studebaker 6X6, White Scout car and Land Rover FFT.
Maybe Mike and I should look as folding some up? His brains and skill and my encouragement and money!
Diana