I have found it on said auction sight, can not see the cocking knob but looks in super condition if it gave serial no of gun i could tell year of production. On saying that the 30 to £50 estimate is stupidly low, stick a 0 on the 30 and it would be some ware near, obviously a come and get me price.Will be interesting to see final bid with plus 20% and vat on the 20%.