?Final Price Realized includes Buyer’s Premium added to Hammer Price
Estimate: $ 3,500 - $ 5,000
TESLA, NIKOLA. Signature and date, on his monogrammed correspondence card. 1 page, 3 1/4x5 1/4 inches; uncommonly good condition. With the original monogrammed envelope, addressed in his hand; remnants of hinging on address side, ink attribution in unknown hand on verso. New York, 18 July 1935
Tesla celebrated his 79th birthday 8 days prior to writing this note. At the party, held in the Hotel New Yorker with a group of guests including over 20 newspaper reporters, Tesla announced a number of incredible discoveries: that the particles of the "cosmic ray" travel up to 500 times faster than light; that his new vibration apparatus could detect gold and coal deep in the earth; that his "oscillating machine" could destroy the Empire State Building using only five pounds of air pressure; and other staggering claims.
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