Not sure but could be an SMLE Mag modified to fit a No.4
Looks like it to me also, a couple more pics would help.
Regards, Jim
Still looks like an SMLE mag modified and then numbered to it's rifle.
Regards, Jim
The serial number and accompanying "BO" mark look like Indian markings. I have a 2A1 rifle that is serialed on the mag in nearly the same font.
I agree that it's a MkIII mag modd'ed to fit a No.4.
In 1941 a contract was issued to modify 100,000 No. 1 magazines for the No. 4.They are not uncommon to find.
Perfect thanks fellas!
I have one of the converted SMLE mags as my back up No4 magazine in my range bag.
It's another interesting Enfied side story.
.303, helping Englishmen express their feelings since 1889