As we were leaving one of the government surplus suppliers was packing up and had a huge pile of non descript items of webbing, bits of canvas and straps of all lengths. A green piece of canvas caught my eye and I asked what was happening to the pile which looked destined for the skip; any four items for a quid was the reply.
I found 13 green breech covers all costing 25p each!
They sound like the ones made for the Far East theatre, which were made from a lighter, and thinner green material.
Just the thing for putting round holes in square heads.