This is a copy of what looks like "a colored pencil drawing calendar attachment" that I found while going though some papers my Mom had given me a while back.  (Note the old car in the background.)

The part on the left side rear (the main "toll" building) is in the background and is still there (beside "Red's & Trudy's Restaurant"), but the bridge was moved to make room for the flood protection dike and the gas station replaced by the current "miniature golf area".