Sell or Auction Your Jesse Ramsden Radius Brass Sextant for up to Over $35,000 or More at Nate D. Sanders Auctions
FREE VALUATION. To buy, auction, sell or consign your Jesse Ramsden radius brass sextant that is for sale, please email your description and photos to [email protected] of Nate D. Sanders Auctions (http://www.NateDSanders.com).
Sell Your Jesse Ramsden Radius Brass Sextant
Jesse Ramsden was an established 18th century English mathematician and instrument maker most notable for creating accurate dividing engines. He also created the Ramsden eyepiece for telescopes. Ramsden’s instruments were used in maritime as well as by mapmakers and astronomers.
Below is a recent realized price for a Jesse Ramsden radius brass sextant. We at Nate D. Sanders Auctions can obtain up to this amount or more for you:
Jesse Ramsden Radius Brass Sextant Circa 1770s. Sold for Over $35,000.
Here are some examples of science memorabilia we have sold:
Albert Einstein letter signed with his hand drawings, elegantly explaining his electrostatic theory of special relativity to a physics teacher struggling to reconcile it with experiments he was conducting. In addition to the letter, which is new to the market, Einstein generously replies to a series of questions the teacher asks him on a questionnaire, providing additional drawings and calculations, initialed ”A.E.” at the conclusion. Dated 4 September 1953 on Princeton’s Institute for Advanced Study letterhead, Einstein writes to Arthur L. Converse, the teacher from Malcolm, Iowa, in part, ”There is no difficulty to explain your present experiment on the basis of the usual electrostatic theory. One has only to assume that there is a difference of potential between the body of the earth and higher layers of the atmosphere, the earth being negative relatively to those higher layers…[Einstein then draws Earth and the atmosphere, referring to it for clarification] The electric potential p rises linearly with the distance h from the surface of the earth…For all your experiments the following question is relevant: How big is the electric charge produced on a conductor which is situated in a certain height h, this body being connected with the earth…” Einstein then answers Converse’s questions on a two-page questionnaire. In one answer, Einstein seems to disagree with the question, providing both a diagram and mathematical equation and then a ”?” to try to aid understanding. He later writes ”not clear” to one answer along with a question mark and additional diagram with the notation ”charge of elektroscope increased proportional to h”. An extraordinary lot by Einstein showing the generosity of his time, with rare content on his theory of special relativity. Single page letter and two-page questionnaire each measures 8.5” x 11”. Also included is Einstein’s original mailing envelope from ”Room 115” of the Institute for Advanced Study, postmarked 7 September 1953 from Princeton. Folds and very light toning to letter, otherwise near fine. Questionnaire has folds, light toning and staple mark, otherwise near fine with bold handwriting by Einstein. With an LOA from the nephew of Arthur Converse and new to the market. Sold for $53,504.
Consign your Jesse Ramsden radius brass sextant at Nate D. Sanders Auctions. Send a description and images of your Jesse Ramsden radius brass sextant to us at [email protected].
The Enrico Fermi Award presented to Nobel Prize-winning physicist Leon Lederman in 1992. The Fermi Award, first given in 1956, honors scientists from around the world for their lifetime achievements, with many of the recipients also winning Nobel Prizes. Medal features a relief portrait of Enrico Fermi, with his name and the years of his birth and death. ”SCIENTIA PROGRESSUS” is also engraved on front, which translates from Latin to ”the progress of science”. Verso reads: ”PRESENTED TO / LEON LEDERMAN / FOR ESPECIALLY MERITORIOUS CONTRIBUTIONS TO THE DEVELOPMENT, USE, OR CONTROL OF ATOMIC ENERGY / 1992” and is framed by the words, ”DEPARTMENT OF ENERGY / UNITED STATES OF AMERICA”. Gold-plated medal weighs 324 grams or 11.4 ounces, and measures 3” in diameter. Case measures 5.25” x 5.25” x 1.5”. Very small mark on front of medal on Fermi’s lapel. Near fine condition. With an LOA by Leon Lederman. Sold for $25,000.
Auction your Jesse Ramsden radius brass sextant at Nate D. Sanders Auctions. Send a description and images of your Jesse Ramsden radius brass sextant to us at [email protected].
First edition of Sir Isaac Newton’s ”The Mathematical Principles of Natural Philosophy” in two volumes. London: Benjamin Motte, 1729. One of the most important works by the leading mind of the 18th century scientific revolution. Bound in contemporary tree calf, sympathetically rebacked, with gilt tooling to spines. Two octavo volumes measure 5.5” x 8.5” each. Volumes contain two folding letterpress tables and 47 folding engraved plates; the two frontispieces and pp. 385-393 and first 7pp. of index are replaced in facsimile, but hardly distinguishable from the original. The ”Laws of Moon’s Motion” usually found in Vol. II are here bound at end of Vol. I, and with errata for both volumes on verso of E4. Small stain to inner part of title in Vol. I, short tear to lower margin of G1, small section missing from lower margin of M3 and with lower corner cut away of A8 and C4 of ”Laws of Moon’s Motion” (no loss of text). Some marginal dampstaining and occasional soiling and spotting, overall in very good, clean condition with most edges untrimmed. Sold for $22,500.
FREE VALUATION. To buy, auction, sell or consign your Jesse Ramsden radius brass sextant that is for sale, please email your description and photos to [email protected] of Nate D. Sanders Auctions (http://www.NateDSanders.com).
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