Sorry about the delay getting back here. Been in the bush for a few days.

These swivels I make are true copies of the correct ones for English rifles. The same snap gate hook was also used on powder flasks with a small ring for the strap to pass through. I've only seen three sets of original ones, and one flask one, in all my travels. So they're pretty rare (and quite expensive when you do find them).

The original ones I have seen, two Alexander Henrys and a Boss, were of a little less than best quality finish, probably because they were made by children in sweat shops, like a lot of the other fiddly stuff back then.

The ones I make are of heat treated steel, so a fall shouldn't straighten one out, and they're finished to Best Quality standard. 100% Made in the USA. Loop width anything from 3/4" to 1 3/16".

Due to the amount of work (which due to advancing age I have to do under magnification), the price is US$275 per pair.