Incoming mail today brings a nice genuine 25 & 17 pounder spare parts roll.
If I am reading correctly, the roll has the following markings.
C.M 1541
ROLL SPARE PARTS
Q.F 25 & 17 PR. MK I
P. J
I'm not sure about the '1541' nor the 'P.J', but that's what it looks like to me, anyway.
I do wish P.J had looked after his things better.
By pure coincidence, I bought a small cotton canvas tarp on the way home, to be used on my CMP sunshine roof. Should be sufficient material left over to make a copy of the spares roll. Guess I'll have to cut some more stencils.