There's no guarantee it's an Apple 1. The
seller
says only he can see
"wires and cards" inside. Perhaps it is an Apple ][
in a wooden case?
Nobody knows, and without pictures, nobody will
know.
I asked the seller for some pictures "under the hood"
of that machine, and was told that it had already been
boxed up for shipment. I'd imagine that if the really
thought it was an Apple I, he'd oblige, so it seems
clear that he expected to gain more from the
uninformed speculation of the potential buyers.
--Bill