Popular Mechanics #2

$400.00

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This prototype was built to illustrate the complex mechanism needed to build an automatic hopscotch scoreboard. When built, it would be over 7 feet long and weigh 400 lbs. Honest.

Made with parts from: billiard scoreboard, antique toy truck, sewing machine table, sewing machine, typewriter, tool and die, antique lock set, etc.

17 x 25