I'm going to photograph the two main CHIRICO decals and measure the letters. Fortunately the yellow letters are edged with a thin black line so they show up clearly. At least then I'll have a record of the type face and size, so that I'll then be able to get these manufactured as self-adhesive decals, if I mess up again.
In reality if the decal was not so wide, it would be easier to remove the paper backing but when it is roughly half the circumference of the tube, it doesn't like staying bent around it !
I've been dealing with Luigi Chirico who has been so helpful and he's had the business since his father gave it up in 1987, so he should know all about the decals etc. Mine look as if they've been in a drawer for decades !