I have a frame with the #G00917 and a cw on the bottom bracket. Cant seem to locate any info on that serial #, also the rear drop outs have i guess they would be tensioners for the rear wheel.
Having problems with photobucket. The seat post has a fixed clamp on it . I looked at some pics of a cleveland welding frame and it looked pretty identical. The chainstays are curved upward, i guess that is a tell tale sign of a cw.