<http://www.classiccmp.org/hp/PDP-8%20cards/flip%20cable.jpg> It has a
That
looks a bit like the (bus) connector cables I have for my PDP8/L.
And it looks like somebody has made a flexible "extender card" from it.
I have a Flip-Chip extender card that looks like that - but without the
cable in the middle....