Purely mechanical from 1932. While the paddles might not fit the definition of a flipper, this simple system is quite fun! Fromwhat I read, was quite a hit in its day. Three versions were marketed. This one may have been manufactured by the Ad-Lee company. Sorry, not for sale!
20220110_143727 (resized).jpg20220110_143800 (resized).jpg20220110_143815 (resized).jpg20220110_151930 (resized).jpg