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Estimate: $ 100 - $ 200
Astronomy File Folders. One folder has over a dozen letters and memos to Karl Henize from Fred Whipple, Director of the Smithsonian Astrophysical Observatory. Subjects are various astronomy issues beginning in 1959, including the use of Baker-Nunn cameras to track Yuri Gagarin's flight. The other folder contains over ten letters on general astronomy. Includes a letter signed by Carl Sagan and a routing slip with letter signed off by Astronauts Don Lind and Ed Gibson. Many letters have copies of Henize's response or of the initial letter sent. Vp, vd
