Rock-Ola World's Series (1934)
Manufacturer: Rock-ola Manufacturing Corporation, of Chicago, Illinois, USA (1932-1938)
Type: Pure Mechanical (PM)
Theme: Sports - Baseball
Specialty: Flipperless
Notable Features: 1 cent or 5 cent play, 15 balls, 3 outs per game.
Design by: David Rockola
Produced: Approx 70,000, the highest production pinball machine ever
Notes: Design Patent DE90,927 applied for August-5-1933, issued October-24-1933.
Ball Shooter Patent Number 1,842,863.
Mechanical Patent No. 1,975,374 filed April-14-1934, granted October-2-1934.
Source: IPDB
To see a video of this game in action go to: World's Series Video
