I have sold quite a bit of vintage ammo. Over my 60 years of shooting, collecting and competing i acquired several thousand dollars worth of really neat ammo and as I'm getting older (74) I decided to start selling most of it. We are extremely lucky to have a very honest and reputable outlet for this. Wards Collectables in Dallas, Or. has sold most of what I had. Some of the old Sharps paper patched shells sold for over $200.00 Each?
When I went to the old Washington state gun show that used to be held at the high school in Renton I would have very little to spend. I bought 9mm rimfire shotgun shell made by Winchester for $.15 each. Those were the days.
Go to their web site and look at what they have up for auction. If you are near Dallas, Or (close to Salem) stop in. Hope this helps, Russ