My friend came across a P14. Was trying to decode the proof marks but it is getting confusing

[rci2950]

Looks like there are maybe a couple of conflicts. I read that the RE on the top of the receiver means Remington but the BM might mean Lithgow.

Maybe it has gone through possible owners.

https://farm1.staticflickr.com/667/20832792139_aa9db953ea_c.jpg

https://farm1.staticflickr.com/563/20831497520_a633605376_c.jpg

[Gunreference1]

This might help.

http://www.allaboutenfields.co.nz/history/markings/

Steve

[Helen Keller]

it's remington, those are just the required proofing marks for british service.

[Schuetzenman]

Exactly so, HK has it correct.