I just found and joined this form. I'm quite happy to have found it. I have a Schwinn World Tourist bike with serial #G 0681 which I bought several years ago at a garage sale for $20.00. Does anyone know what year this was mfg.? How abut what it might be worth? I't in great condition. I'm toying with the idea of having an electric motor installed on it for scooting around the neighborhood. Does anyone have thoughts re this idea? Again, happy to have found you!