Warbird Information Exchange

Back in the early to mid '70s, my dad had a flying service & we had gotten a set of prints, I think from Sporty's, & they were, IIRC, 'training airplanes'. I think the set consisted of a J-3, PT-17, PT-19, BT-13, & AT-6. They were probably 11 x 14 in size. I don't know what became of them, but I'd like to find another set, but I don't know exactly what I'm looking for. I check eBay some, but again, I'm not sure what I'm looking for other than the a/c type print(s). Anyone familiar with these? Better yet, anyone have a set to part with? Thanks.