The Rock-Ola Manufacturing Corporation began in Chicago in June, 1932
to manufacture pinball machines.  David C. Rockola, the founder, led
the industry in the early years and is credited with numerous innov-
ative machines which are some of the most prized by pinball collectors
today.  This company eventually evolved to the jukebox giant which
lasted, I believe, until the 70's. One of you jukebox guys will have to
fill in the rest of the story, I'm only interested in the history as it
related to pinball.