Might be time to put this one to bed and call it Lincolnshelby 22 24: close enough. Thank you Shawn for the kind words and confidence here. We do know that early Shelby Cycle Frame Builders bikes are so few. The mistaken ID level rises with frames like this because so few are around. Yours is a smaller frame than my #205150 SCFB bike below but similar. What is odd is the wide looking seat stays on your frame. The missing fender bridge and no intact parts make it not really worth much imo, but a good example for posperity. If you did not already get tipped off above by the AS links to the once-attached badges, look again. Yours has the same very distinct badge outline as my Orange moto. "Caddillac" "Lawlors" "Tiger" are very specific badges for your frame.
Badge outline Screw spacing also matches. Would be near impossible to find original parts if that's what you're thinking...just my opinion.
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