I got it off eBay, not at the requested price, I made an offer which was accepted. I know the son of the above mentioned lock keeper and he told me the bronze alloy ones were made as presentation pieces. The person selling them is the cousin of the pattern maker, I believe. As mentioned previously it is very heavy, certainly not a tuck it in your trouser belt Jobbie. Original Dunton windlass have the pattern makers initials engraved in the socket. As the lock keeper and the pattern maker found it too expensive to patent the design there may be “knock off” copies around.
This is a carbon fibre copy. It is not strong enough to use as I am aware of ones which have split. To be fair I was offered a refund by the maker but decided to keep it as a display piece.