Two vintage 2MM sub mini female panel mount test probe jacks, both black. These have tops that have more square top that is a bit larger in diameter than the other square top one I have listed. I sorted to match. I have others listed that have a more dome top. My dad saved, probably in the 1950s, and they are used as they have solder on the back lug.

Happy to combine shipping as shipping multiples will cost the same as one.