Yes, the G46 targetmaster. Originally it came with a Diopter sight, there never was a rearsight (M31 diopter?? Milbro made, only the Brits would make a target rifle in .22) and is quite an unusual Milbro it has to be said. I'd say more than £50, though you dont have the diopter it seems. Looks to be in very good nick, is that the original finish? I'd go for £70-90 at a guess.