I went on one of my forays to Earlestown market yesterday, and on one of the junk stalls I came across this Martini Henry carbine which had been converted from a Mk11 rifle. It isn't the best of examples, but it is a totally original 577/455 cal which had been shot through and then consigned to DP by the military. The barrel has been cut just in front of the breech, and the breech has been plugged with a block of brass.
There are no markings on the receiver or barrel, but several parts are WD stamped, and the woodwork is stamped DP. It has had a refinish at some stage, but I would guess it has probably been done by the military - maybe at the time of its conversion. Someone had given the woodwork a high-gloss varnish. But after the weapon was stripped and the varnish removed, I gave the wood a good coating of teak oil, and then a generous coating of beeswax polish. The end result was much improved.