Ok, so I recently picked up a Ross 10-speed and a Ross frame. I've done some searches on Ross here and it seems like they have a fairly varied history to say the least and I was wondering if either of these frames (that's the main thing I'm interested in) is worth working with. I was planning to make a single-speed so I was mainly interested in getting the horizontal dropouts on these, but I'm just a little curious as well.
The blue one is just a frame I picked up. The only markings are two places where it says Ross and there is one sticker that says Cr-Mo on it. What is chromoly? I've seen it mentioned a lot but don't know a whole lot so would like to have some explanation.
The complete bike is labelled as a Ross Professional Gran Tour II. It has an additional sticker on it that I couldn't photograph that talked about it being lugged steel from Allentown or something. Any idea which of these frames is of better quality, etc? Sorry for asking dumb questions, I really am interested in learning how to tinker with bikes but don't have a ton of money to do it, so I thought for $5 I couldn't go wrong with messing with these frames.
Edit: The stick actually says Tempered 1020 Lug Steel Allentown if that makes a difference.