I have an incomplete martini henry carbine that has had me stumped.

There are no markings on the receiver. Only a few markings on the barrel (some of which I think means it is a commercial made rifle?).

Also it looks to have the BSA logo stamped onto the top of the barrel.

Here are some photos:

https://imgur.com/a/4nokSqO

Also here is the photo that shows the just visible BSA logo:

https://imgur.com/aAZShLe


Anyone have any idea as to what this is?