The pistol itself is marked as being in .177 calibre but, unusualy, it comes with a spare .22 calibre barrel as well.
It appears to be a fairly early serial number, so is not marked with the Hull Cartridge stamp of the later models.
The box is in undeniably poor shape, but the pistol cocks and fires with no issues.
Overall, I would rate the pistol's condition as being around 8.5/9 out of 10. There is a very slight 'smudge' on the finish above the safety catch on the right hand side of the pistol (photograph 2), a very small scuff at the top of the pistol grip on the right hand side (photograph 5) and a very small chip on the 'hammer' (photograph 7).
Collection in person would be preferred but I would be happy to post, at additional cost.
Sensible offers would be considered.