Press Bar system for German Map Board Replica
The replica map boards has two press bars installed on left and right side.
The original map board came with only two clear press bars, both are on the left board.
Found pairs of holes at the right board indicated that there was more than two bars to press the map down.
And from my experience two more bars are holding the map firmly, and the felt pads raised the bars made the slide of the map easier.
Now there are extra pair of press bars with FOUR Round Head Slot Brass Screws and Felt Pads set is available for $25.