Signature.
This New York scientist was not the first to satisfy the late 19th century obsession with liquifying air (thus creating perpetual motion), but he invented a liquid air machine that sought to make it practical and sought practical applications, touring the United States to demonstrate it. Large, bold, handsome signature and "New York / Liquid Air" in brown ink, heavy stock 3½" X 2½" card, n.y. [1900]. Very good. Mild age toning; mounting trace at each corner. Unusual. Item #26950
Price: $100.00
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