I can say I had one... a 8in f/4.5 Odyssey 8 I got in junior high school, I sold golf balls to pay for a Telrad and eyepieces to use with it.

The optics were terrible compared to scopes of today. And that "focuser" was very low frills! Anyway, I picked up some new observing guides and there were several references to 13.1 and 17.5 inch scopes in them. About all those could be are old red Coulters!