Quoted from polyacanthus:Here's one. Is there some reason for this I'm not aware of or did they just not know how to operate their cutters? I was going to start a thread for this question but I believe it belongs here.
Edit: also notice the resistor clot in the background.
Those are wire wrap sockets; which you now know.
Something you might not: Wire wrap sockets sometimes had tapered pins, so it's possible they got this far and got stuck.
Or: they were designed for protoboard, not PCBs, so if you try to shove those sharp edged pins all the way in you can cut or
dislodge the traces. It's possible they got that far, the traces started to lift, and they decided that was good enough.
I bet they either didn't have the right sockets on hand, or with them in the field.
Not saying it's right...but I understand.
I still have my wire wrapping bus wire and tools...and I don't think I've used them since 1992 or so.
As for the resistors, well, you never have the SIP resistor line you need, but everyone's got 1/4W carbon :p