I already sent these to Nancy, but thought I"d post them here too, just in case someone has a set in their parts pile and doesn't recognize them. These are the hinges for a Pfaff cabinet.
In order:
1. Looking down at it from the top. The pip on the top left is actually the stem that fits into the hole on the machine base.
2. From underneath-you can see the base is square (and that I'm missing a screw!) and the hinge body itself it flat, not round.
3. This is close as could get to a dead-on shot. (Pardon the rubber band-it's holding the hinges up.)