Dingba Flipper Dingball - Mechanical pinball machine - 1950-1960

Selling a DINGBA mechanical flip phone, foldable retro style, in good overall condition.
It works, but one of the bulbs needs to be changed—the red one.
The point disk turns perfectly.
Found in the attic, so a bit of rust, nothing serious.
Missing the cover or where the batteries are located.
The five balls are indeed present.
When the balls touch the bumpers, the yellow lamp lights up and the numbers scroll.