I am helping out the owner of a fairly beat-up Champ to get it going again. While poking around inside, he found this folded up bill of sale from 1978.
The machine was launched in 1974 according to IPDB, and this is from 1978. So I presume this would have been for the sale of a routed machine? Possibly sold to a private individual for home use. I'm not sure if such a thing happened in that era. I'm pretty sure a new machine did not cost $50 even in 1978.