I believe Douglas is referring to this mark:
[Linked Image from i.imgur.com]

Here is a line on Charles Osbourne & Co.
https://doublegunshop.com/forums/ubbthreads.php?ubb=showflat&Number=428703

Since it's been re-barreled, wonder whether the number on the fore-end 18395 might be the original Osbourne SN? Usually if that number is under "Patent" it indicates Patent Use Number (PUN). If this is an Osbourne SN Lagopus will help date it.

Charles Osbourne catalogue from probably 1890?
https://campaignfurniture.com/artwork/chas-osborne-co-gun-catalogue
See the picture of the harpoon gun:
[Linked Image from i.imgur.com]

Last edited by Argo44; 09/02/25 09:01 PM.
Baluch are not Brahui, Brahui are Baluch