I was just in Tescos and one of there leaflets had a Tandem on it.

Its a ladyback tandem that looks like its from the sixties, its badly
set up and its got a bent crank. It looks like a Scwinn or something.
Its got a cruiser style frame and the back handlebars have a tube
that goes down to the front BB shell. Its dark red with a single
sided drive line using ashtabula cranks and a tension wheel instead
of excentric BB cups.

What kind of bike is it? When will I see one abandoned in a field
near me?