Original Mirco black and white arcade game circuit board from the 1970s. We found this one in a box with some other boards from a bulk purchase, it is very clean, but untested, we have no way of testing it. We suspect this may from Challenge, but aren't certain, see pictures for more details on its condition. Original Part Number ASSY 1032-3700.
Untested and sold as-is, but we're guessing not working due to its age.