I own a very similar No.2 Mk.I** Enfield made revolver. I think it's dated 1943 on the barrel. Has the blueish look to it that I thought might be parked or maybe blued or both...no paint. Has the blue steel grip disc as well which is obviously blued.

Mine is only rated for 3 1/2 Tons!!

A gunstore in Edmond OK had buckets of No.2 revolvers for $50 each(early 1990's price)....most had black paint and brass grip discs.....I dug the buckets and bought the only unpainted one which was the only one with a blue steel grip disk. I wish I had known more about these revolvers then...there may have been a rare revolver or two or three in those buckets!