Mammoth

The Mammoth, produced by J.H. Keeney and Company Incorporated in November 1935, is an early example of electro-mechanical payout pinball from a period when Keeney was already an established name in Chicago's coin-operated amusement industry.

Detailed information about the Mammoth's specific playfield layout, scoring mechanics, or artwork has not survived. As a payout machine, it would have dispensed winnings directly to successful players rather than awarding replays or extra balls, a common format for pinball machines of the mid-1930s before later gambling regulations curtailed such devices.

Given its age and scarcity of documentation, the Mammoth stands as a rare artifact from pinball's pre-flipper, formative years, offering a tangible connection to the game's earliest commercial history.