Gentlemen, Thank you for your help.Pics of proof marks are not going to come.I am not in the market to buy it,but its origins/authenticity mystify me.There is a crane engraved on the sideplate if you look closely. Leave aside the barrels and stock, could the action alone be a Purdey one,one that of 1880's? Thank you all once again for your replies.

Best-
Vikram

Whenever you find yourself on the side of the majority, it's time to
pause
and reflect.

- Mark Twain