This is an antique lock and key for the back door on a mills novelty co slot machine, bell lock system pat pending and numbers match this is a half mortice style lock with a 7/8 dia cylinder the lock is 2 inch X 1 5/8 overall has the hard to find key. 1907: Herbert Mills makes The Operators Bell. Chicago-based manufacturer Herbert Mills made his own version of the Liberty Bell, The Operators Bell, that used three reels of different fruit symbols.This is where the term 'fruit machines' originates from. The Mills Novelty Co. Was also the first slot machine. An unrestored Mills Novelty Co. Slot machine, manufactured from 1932 to 1933. The cast aluminum front is embossed with an Art Deco motif, decorated with stars along the base. Retaining the original award card, fortune fruit reel strips, and back door. There is wear throughout the casting and cabinet and the back door is missing the security strap. The machine plays and pays correctly.
model of slot machine that Mills
had slot operators waiting at the
assembly line.
•original Mills lock & key
•excellent original reel strips
•original cash box
• investment grade antique that
out parts
• flawless operation $2800
View our other Puritan Baby Bell trade stimulator for sale.


Mills Nickel Slot Machine
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