The literary digest . Pennsylvania nine stock tires which, put toofficial finish test by the Auto-mobile Gkib of America, aver-aged 6,760 miles, definitely estab-lished the unusual quality ofVacuum Gup Tires. The rainy day certified test ofthe Pittsburgh Taxicab Company—in which a heavy car equippedwith Vacuum Gup Tires wasdriven around a wet corner at 25milesan hour without skidding—

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Keywords: ., bookcentury1800, bookdecade1890, bookidliterarydige, bookyear1890