I'd start by asking Gunter Prfommer down in Rocky Mount, Virginia.
Pfrommergunworks@hotmail.com
www.pfrommergunworks.us540 484-5555
![[Linked Image from i.imgur.com]](https://i.imgur.com/K55Zkg2.png)
He has a well known reputation for work on 19th century doubles in the area of NC and Va. But when I was last down there in February 2024 he was working on a Thompson. I think he can do about everything. The Swinburn had a reputation of being more fragile than the Martini....which it copied to a certain extent.
https://doublegunshop.com/forums/ubbthreads.php?ubb=showflat&Number=628160&page=allThis cursory comment from the Reilly history;
. . . . .
Swinburn-Henry: **5a The Swinburn was similar to the Martini-Henry but differed internally quite a bit. For instance it had a thumb manipulated side lever which could cock the hammer without operating the lever. It fired the same .577/540 Martini-Henry cartridge but was more prone to breakage. It was patented in 1872 and all production was done by by Abingdon Works Co. Ltd., Birmingham. Reilly’s first advertisement for a Swinburn rifle (which he misspelled) is from October 1875.
*54a1 . . . . . . . . . .-- There is one extant Reilly Swinburn from about 1885 in the Royal Armouries. It is highly engraved with a lion surrounded by fine scrollwork on the right side of the receiver and two stags on the left. It is engraved “E.M. REILLY & Co., 277 OXFORD STREET, LONDON, AMMUNITION GOV 577.450.”
*54a2 https://collections.royalarmouries.org/object/rac-object-30155.htmlHere is a similar Swinburn from Holts a few years ago:
![[Linked Image from i.imgur.com]](https://i.imgur.com/T4nUEb2.png)
Gene Williams