Thacher's Calculating Instrument, New York: Keuffel & Esser, 1925. — THACHER CYLINDRICAL SLIDE RULE MODEL 4012.

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Estimate: $800–$1,200 hammer
Result
Performance
Sale: Bonhams — History of Science and Technology, Online, New York · 13 October 2024
Record ID: TB-2026-360859
Record: first seen 20 Jul 2026 · updated 20 Jul 2026 · source ↗
Cite this record: TB-2026-360859 — https://thebasis.art/cite/TB-2026-360859

Thacher Cylindrical Slide Rule Model 4012., Thacher's Calculating Instrument, New York: Keuffel & Esser, 1925. Bonhams, 13 Oct 2024, lot 20. bought in (did not sell). TheBasis.Art, TB-2026-360859.

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Thacher Cylindrical Slide Rule Model 4012., Thacher's Calculating Instrument, New York: Keuffel & Esser, 1925. Bonhams, 13 Oct 2024, lot 20. bought in (did not sell). TheBasis.Art, TB-2026-360859.

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From the same sale History of Science and Technology · Oct 2024

Lot	Artist	Estimate
STIRLING, JAMES. 1692-1770. Lineae tertii ordinis Neutonianae, sive i…	Stirling Expands Newton's Work On Cubics.	$8,000–$12,000
MESMER, FRANZ ANTON. 1734-1815. Contemporary manuscript treatment of …	Mesmerism.	$2,500–$3,500
EARLY CALIFORNIA TELEPHONE DOCUMENTS. Autograph letter signed ("Jno. …	Early California Telephone Documents. Autograph Letter Signed	$6,000–$9,000
An album of manuscript notes, ideas, experiments, etc.,	Early Telephony And Telegrams.	$10,000–$15,000
UREY, HAROLD CLAYTON; and ARTHUR EDWARD RUARK. Atoms, Molecules, and …	Richard Feynman's Annotated Copy, With Two Early Feynman Autograph Manuscripts.	$15,000–$25,000
A Hagelin M-209-B Cipher Machine, American, c. 1945.	The American Cipher Machine Of Wwii.	$3,000–$5,000

Comparable results nearest sold works, same medium & price band

Artist	Lot	Result USD, incl. premium	Sale
Thacher Cylindrical Slide Rule Model 4012.	No 3117, New York: Keuffel & Esser, c.1910,	$1,536	Bonhams, Oct 2023
Apollo 11: Nasa "red Number" Photograph	BUZZ ALDRIN DESCENDS THE LM LADDER. Color photograh, 8 x 10		Bonhams, Jul 2021
Thacher Cylindrical Slide Rule Model 4012.	No 5343, New York: Keuffel & Esser, c.1920, multi-faceted cy		Bonhams, Nov 2020
Altair 8800	8-bit microcomputer by MITS, c.1974, metal case with removab		Bonhams, Nov 2021
Altair 8800	8-bit microcomputer by MITS, c.1974, metal case with removab		Bonhams, Nov 2020
Apollo 8 Earthrise	SIGNED WITH CHRISTMAS MESSAGE FROM FRANK BORMAN. Large forma		Bonhams, Nov 2021
Apollo 11: Nasa "red Number" Photograph	ALAN SHEPARD POSES WITH THE U.S. FLAG. Vintage NASA chromoge		Bonhams, Nov 2021
Posselt, Emmanuel Anthony. 1858-1921.	The Jacquard Machine Analyzed and Explained: With an Appendi		Bonhams, Nov 2021

The closest sold results by price, artist, and medium — the appraiser's comp set, generated from the corpus. All figures converted to USD at current reference rates.