I think it could be an Intel Multibus based system - who else would have an 8088/85? (Actually, a friend had an S100 card in the early 80's, but it wasn't Multibus)
I believe Multibus was codified as IEEE-796. I think later versions went to pin/socket connectors like Eurocard/VME.
BTW, I've always thought that Blunderbus was a good name and used it for a project in college.