I am building this one for my Grandson, 6yrs old. It may be a little too big for him now, but he's growing like a weed. 1950's 20 inch Columbia (I think, correct me if I'm wrong). I got this frame from another member on this site, but don't recall who. Some of you may recognize it as I believe it was used on one of the previous build offs. Stripped the frame, then sandblasted & then powder coated it. Plans include a bent springer & some apes off an old Stingray for it. I'm gonna take my time with this one, as I have a lot of other projects going right now. Pics attached.