Joined: Jan 2009
Posts: 44,338
Likes: 6,639
From: New York, NY, and High Falls, NY, USA
Bikes: 1962 Rudge Sports, 1971 Raleigh Super Course, 1971 Raleigh Pro Track, 1974 Raleigh International, 1975 Viscount Fixie, 1982 McLean, 1996 Lemond (Ti), 2002 Burley Zydeco tandem
Holy cow, those are beautiful. They all look like PX-10 frames, though the first one confuses me, because it seems to have a cottered crank. Was that added on later? It's a heck of a downgrade.
The PX-10 was a really good frame. It didn't have the neatest brazing work but not the worst, either, but more importantly, it gave a wonderful ride. It was made of Reynolds 531 tubing throughout.