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This image is copyright free and in the public domain anywhere that extends copyrights 70 years after death or at least 120 years after publication when the original illustrator is unknown. National TelescopeThe Great Equatorial Telescope at the United States National Observatory. At the time, it was the finest telescope within the United States and one of the best in the world. How alien our modern-day telescopes would look to astronomers from 1879. Artist: none listed Image Appears In: Harper's Young People, December 2, 1879 Date Image Published: 1879 Check out ourAbout Us page for more information on Copyright Durations.
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