the receipt is dated 1978. and the pink slip is an original order form for reflectors, axle kits, and bearing cups for the tuffs. i thought some of you skyway tuff wheel fanatics might like to see these. here is the box they were in:
and no, the wheels were not in it
the small white print on the bottom of the wheel pictured on the box reads "tuff wheel pat. pend.". very old indeed! enjoy!
--mike.