If you want period tires you're going to have to trawl Ebay. There is stuff there
Does anyone know what make was used for Army contracts, Dunlop, John Bull?
I should have realised there would be extensive info on this. But does anyone know if John Bull made army tyres? I once had a '46 Matchless G80 with the original JB tyres. Smooth up to 50 and then was a road drill. And I do know what's that's like as I often worked on construction gangs whilst a student. It was a nice bike that I never should have sold but I did get through trousers at an alarming rate. Turned out someone had left a battery on the seat, for several years.......