Ad for the Jumbo Jiant spark plug in the February 10, 1915 issue of The Automobile magazine. The Jiant was manufactured by Gibson-Hollister Mfg at 3380 Washington St. in Jamaica Plain.
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Ad for the Jumbo Jiant spark plug in the February 10, 1915 issue of The Automobile magazine. The Jiant was manufactured by Gibson-Hollister Mfg at 3380 Washington St. in Jamaica Plain.
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