LOL, reminds me of these old 50's circuits where components were mounted vertically and sandwiched between two PCBs

http://www.cryptomuseum.com/crypto/usa/kw7/img/cordwood.jpg

Yeah cordwood boards. Love it.

Believe it or not, this fixture is actually advanced for the testing industry. Most test fixture houses prefer to individually wire-wrap each pogo pin instead of using a PCB for connectivity. You end up with this terrible thing: https://imgur.com/a/pLHF648

Thanks! Yeah, we've been designing fixtures like that and have built some specialized automation to do so.

The fixture design can also be co-generated when we design a PCB in our system.