Hi Baz,

Not much I can add to the excellent advice provided so far. The only thing I can think of are a couple of minor variations outlined in GB's book such as modified sights on later examples. Your pistol looks to be in excellent fettle - not sure if it comes with a green double sided instruction leaflet and pellets?

The Junior Mk 2 is not the most desirable Junior amongst collectors (unfortunately) but as yours appears to be almost brand new old stock, it has to be worth £150 or possibly a little more as the condition ought to fetch a premium.

John