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This 52+ year old Item is rated Very Fine +++. Light aging in margins. No creases. No natural defects. No surface rub. No tears. No water damage.
Keywords specific to this image: Vintage Advertising, engineering, design, invention, inventor, Dartmouth College, Control Division, PRODAC, patent, L. H. Noggle Lucille Ball, Desi Arnaz, CBS, machine, machinery, device, tool, circuit simulator