Elcon Industries Early B&W Board

Possibly Blockbuster?

Original Elcon Electronics black and white arcade game circuit board from the 1970s.  We found this one in a box with some other boards from a recent bulk purchase, it is very clean, but untested, we have no way of testing it. We suspect this may from Blockbuster, but aren't certain, see pictures for more details on its condition.

Untested and sold as-is, but we're guessing not working due to its age.