Hi Walter,
I skimmed your page and saw the lovely 515A.
While I am unfortunately not in a position to store or use the scope, I
_do_ happen to have the paper manual for it. I have it for scanning for
Tekwiki but I don't need to keep it beyond that and it should accompany
the instrument.
Perhaps you can advise the buyer they can contact me if they want the
manual.
best
--Toby