Somebody I correspond with has acquired a very nice 1945 No. 5 manufactured at BSA Shirley.
https://www.milsurps.com/images/impo...6/bsa111-1.jpg
https://www.milsurps.com/images/impo...6/bsa310-1.jpg
It bears a marking that we just can't identify: 3 dots on the receiver, close to what seems to be an Australian inspection mark.
https://www.milsurps.com/images/impo...6/bsa410-1.jpg
Any ideas as to its signification?