I dug this out and put tires and upright handlebars on it yesterday. I've had it for about 15 years and never got it roadworthy. It has a 23 inch frame , a little too big for me, but it rides perfectly. There are only a few teeth difference between the sprockets, the pedals don't use bearings, and the derailer has rollers without teeth, and red stripes. It has sturmey archer wheels, but I can't find a date on them. serial is 279990. I don't think they kept track of their numbers though.