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Letters to Nikola Tesla On His 75th Birthday in 1931 from Pioneers in Science and Engineering
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Nikola Tesla "Blue Portrait"
Above: Nikola Tesla's famous "blue portrait". Image taken from allaboutesla.com and copyright Fotoarchiv Museumsverbund Nordfriesland. This portrait was finally rediscovered at NordseeMuseum, town of Husum, North Germany.

New York Times Article from March 2, 1916 about Princess Lwoff-Parlaghy reception displaying Nikola Tesla's "Blue Portrait" at her studio at 109 East Thirty-Ninth Street, New York City:

New Times Article March 2, 1916

Above: Testimonial volume honoring Tesla's 75th birthday. This is the cover page of the testimonial volume containing letters of congratulations from 70 scientists to Tesla for his 75th birthday in 1931. This volume of letters to Tesla is currently in the Museum of Nikola Tesla in Belgrade, Serbia.

Above: On his 75th birthday in 1931, Nikola Tesla's photo appeared on the cover of Time Magazine. Nikola Tesla's "Blue Portrait" by Princess Vilma Lwoff-Parlaghy was used on the Time magazine cover for Tesla's 75th birthday in 1931.


Above: Nikola Tesla Museum in Belgrade, Serbia.

Above: The Archives of the Nikola Tesla Museum in Belgrade, Serbia.

Letters to Nikola Tesla from the Archives of the Nikola Tesla Museum in Belgrade,
75th Birthday of Nikola Tesla (1931)


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