Bubble

Bubble is listed as a 1939 electro-mechanical game from the Genco Manufacturing Company of Chicago, though it is something of a mystery: IPDB notes that no further information on 'Bubble' has been found, and the February 1939 date on record may have been confused with that of Genco's 1939 'Bubbles'. That uncertainty makes it an intriguing footnote for pinball historians rather than a well-documented machine.

What is recorded is a simple single-player playfield equipped with fourteen passive bumpers and a single kick-out hole - a straightforward late-1930s design from the era when bumper-based scoring dominated pinball. The passive bumpers scored points as the ball brushed past them, while the kick-out hole added an element of surprise by capturing and ejecting the ball back into play.

With no known surviving documentation of its artwork, theme, or production, Bubble remains an open question for collectors and researchers, and any period advertisements or photographs of the game would help confirm whether it existed as a distinct title.