Hi roger..thank you for the detail,this scope is part of a large collection passed on to me by my father, i believe he had a passion for shooting some time ago,he collected allsorts of militaria from trench art to lugers,ive even got some original civil war stuff...i am considering selling the scope as my interests lie with ww1 ephemera..george bairnsfather etc. however i will obviously inform you of the situation should i decide to sell..best regards ..shilly