So I’ve got my 1919A4 pretty well finished except for parkerizing and building an AA tripod so I am considering my next project. I have available to me a partial kit of parts for a relative of the 1919. I’m really not sure what it is, interior group is a little narrower than the 1919, the bolt is ambidextrous can feed from either side, cocking handle can be on either side etc., it is in 303 Brit. . I am enclosing a couple pics that I think you guys will be able to identify the gun by, I think it may be like what was on a Spitfire aero plane?, so is it a anm2 ? I’m thinking it should have BSA on it some where ? What the heck is it ? Thank you for all replies, Jon P.