Midway invaders have a snug fitting metal lift out box often partially lidded , enclosed, just open on the entry side …then a slide over lid with two small squarish coin holes line up with the coin switches. The slide on lid prevents lifting out of coin box and usually accommodates a padlock tab on one side . Assuming the lid runners are still in place ? One side will also have the padlock tab. I once had several but not sure if any left now?
