GB16190 should be a .22 Mk.1 produced between 1956 - 1958.

Check the prefix on the other one, as 'GT' applies to a .177 Goldstar from 1991 - 2000
troubledshooter

Thanks for that,I think that my Dad bought it about 1958 ish so that means it was probably new.

The other is defo an Airsporter but it could be something other than "T" as it has been painted in thickish matt black.I'll give it a scrape to see better as I am gonna gloss paint and bake it anyway.I suppose it could be a "J" which would make it a Mk5 but did they have steel loading taps?

Cheers,
Dean.