Just hoping to get some feedback from the members who are in the know, and you know who you are, lmao. This first pic is from a board pulled from a high end laser printer/copier. It was the main control board. I'm thinking this is gold plating, but don't want to get too excited until I hear from you guys.

Pic #1




Pic #2 is from another copier.


Pic #3 now this is from an older desktop adding machine. Sure looks like gold but from an adding machine? The back of this board is brown.