F.Parry
Although strongly damaged and with a curious wear of the cylinder, I think that it is about the revolver manufactured by F.Parry, sold tardily and for little time, by Westley Richards.
He should be of a rather important gauge, with 5 shots and with the punches of Birmingham.
Here the photograph of the Parry revolver of late manufacture, probably for W&R.
It is true that, seen the conditions of wear of the weapon to examine, it could act of anything.
However I persist in believing that it is about one of first Parry, assumption of a copy seems not very probable to me, or then the work of an insane mystic, at that time (without going to Pakistan) one found copies Spanish of S&W to a third of the price of Adams and, a fortiori of Parry.
Vittorio Mangiarotti