Enfield No2 revolver

I have an Enfield No2 revolver that has been refinished with a coal black surface. It appears entire revolver was dipped. Nice but different. Also SPG stamped in butt and SPG with a number etched in front of grip frame. Any help on this . Finish and SPG?

Sounds like a Pakistani issued Enfield revolver. Likely refinished by them at some stage of play.

Singapore Govennment is my guess. Did hundreds and hundreds for them but a picture would confirmn it

Will try to get a picture posted