Hi Ed,
Thanks for the advise, I will try and get a good look at the rifle on Thursday. If I can get it stripped down and look for the points you have raised. I will also put it over a chrono and that will give me a good idea of spring and washer condition.
If it appears to function well then I could see a restoration project on the cards, mind you I'm never too sure of how far to take them, polish every thing or leave as is!

Thanks again Ed

Iain.