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Henri-Alexandre Deslandres Pair of Autograph Letters Signed

Currency:USD Category:Collectibles / Autographs Start Price:NA Estimated At:200.00 - 400.00 USD
Henri-Alexandre Deslandres Pair of Autograph Letters Signed

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Auction Date:2018 Apr 19 @ 18:00 (UTC-5 : EST/CDT)
Location:236 Commercial St., Suite 100, Boston, Massachusetts, 02109, United States
ALS - Autograph Letter Signed
ANS - Autograph Note Signed
AQS - Autograph Quotation Signed
AMQS - Autograph Musical Quotation Signed
DS - Document Signed
FDC - First Day Cover
Inscribed - “Personalized”
ISP - Inscribed Signed Photograph
LS - Letter Signed
SP - Signed Photograph
TLS - Typed Letter Signed
French astronomer (1853–1948) who was director of the Meudon and Paris Observatories, and who invented the spectroheliograph and carried out intensive studies on the behavior of the atmosphere of the sun. The Deslandres crater on the moon named after him, as is Asteroid 11763 Deslandres. Two untranslated ALSs in French, each signed "H. Deslandres," both written to Cambridge astrophysicist Hugh Newall. The first is eight pages on two sets of adjoining sheets, 8.25 x 10.25, Paris Observatory letterhead, August 2, 1929, mentioning Trinity College, Cambridge, the Meudon Observatory, George Ellery Hale, Mount Wilson, and other topics. The second is four pages on two adjoining sheets, 5.25 x 8.25, Paris Observatory letterhead, December 3, 1929, again mentioning Cambridge and Hale. In very good condition, with heavy dampstaining to the first letter, and splitting to the central horizontal fold of the second letter.