Thanks wrecker, we have not found any timbers where we are, and the wood does get eaten by worms very quick where we live.
We have found halve of a wooden block, but that was very hard wood, I am not sure how hard the wood is on a old pistol ?
I have dived in the HMS Ramilies which sunk in 1759 and there is lots of timber still there , don't know why.
We wont try to clean it before we get it x-rayed, I think that formed a layer of crud before the wood rotted or was eaten, and if we tried to remove the crud we might loose it own shape.
The thing that made me more hopeful was that my sons toy fitted the shape and size almost exactly. I will contacted the cannon conservation lab in York and might as them to lend a hand. (we have found lots of ammunition for it)
Also on TV program they raised some cannons from a 16th century wreck off Jersey UK, plus two complete muskets. Any other views welcome.