KEUFFEL & ESSER CO. THACHER CALCULATING INSTRUMENT

Thacher's Calculating Instrument, Cylindrical Slide-Rule, Keuffel & Esser Co., in original box, case is 24" by 6.75 by 6.25". In great condition.

Circa 1914 Thacher's Calculating Instrument or Cylindrical Slide Rule, designed by Edwin Thacher in 1884, this version manufactured by Keuffel & Esser Co. of New York, with tag stamped "No. 4012, Seri

KEUFFEL & ESSER THACHER CALCULATING INSTRUMENT, slide-rule cylinder with brass mounts and wood end handles mounted on original base with operating label, original dovetailed mahogany case with interio

Thacher's Calculating Instrument, 1881 Model 1740, American cylindrical slide-rule, manufactured by Keuffel & Esser, New York, serial no. 435, with original manual (dated 1884) in mahogany case. An e

slide-rule cylinder with brass mounts and wood end handles mounted on original base with operating label, cylinder is dated Nov. 1st, 1881. In original mahogany case.

Pair of mid-20th century surveying tools by Keuffel & Esser Co. (drafting instrument and supplies company founded in 1867 by two German immigrants); one WW2 era Cooke Radio Slide Rule, model #4139, de

Antique Keuffel & Esser Co. Solid Bronze Surveying Instrument. In Original Box. Condition: Generally Good. Dimensions: Box H- 15.5" x W- 9.25" x Depth- 10.25". Provenance: From a Long Island, NY Home.

Mahogany Cased Slide rule or cylinder calculator by Edwin Thatcher. Mahogany and Brass mounts. Complete, Original. Very good to excellent condition with minor signs of gentle use, but no wear or damag

latest patent date Oct 13.91, #11437, brass mounted compass and transit, in original wooden case with leather strap, retaining interior paper label. Compass with directional dial, level. Case 15 .25 x

In fitted case, approximate height of case 6 1/4", width 8 3/8", depth 6".

Antique measuring instrument(?, 23"Lx5.5"x5.5") by Keuffel and Esser co

Surveying instrument manufactured by Keuffel & Esser Co. New York, Early 20th Century, encased in a oak travel case with a hinged lid and brass hardware, model number N5003F, serial number: 79774, 10"

Keuffel & Esser Co transit in case, optical, surveying instrument, serial 102328, c. 1948

4 high precision measurement instruments, includes NSK, Nippon Sokutei slide rule, "DSI" instrument in case, Keuffel & Esser Co. Paragon in case & Germer Graph Analogue, Model GA-103, in original case

Precision instrument for drafting etc, the original wood carrying case. Approx 2 inches wide by 18 inches long by 1 inches tall. Wood case Approx 3.5 inches wide by 19 inches long by 2 inches deep. We

DESCRIPTION: Vintage Keuffel & Esser Co. log log duplex decitrig slide rule featuring marks for calculating various mathematical functions from arithmetic to trigonometry to algebra. Includes orange l

Old Keuffel And Esser Co. Made in Germany stamped pocket drafting instrument with leather brown case. See photos for size.

ASSORTED BRASS AND STEEL ENGINEERING / DRAFTING INSTRUMENTS, LOT OF THREE SETS, comprising a Keuffel & Esser Co. NY planimeter, original box with dark blue velvet interior lining, original paper label

DESCRIPTION: A Keuffel and Esser Company Sextant. Features a handheld navigation instrument executed in cast iron and brass, encased in a mahogany box with brass handle and locks, with a brass plaque

Vintage K&E Co. survey transit scope instrument. Model 5093A Serial #160157 w/ original wooden case in good condition.

Include Keithley electrometer with decade shunt, Simpson Electric Co. ohmmeter, Keuffel & Esser planimeter, Sola Electric Co. transformer, and Eclipse Aviation coil booster. Also includes 8" diameter

Keuffel and Esser (K&E) slide rules, including one (1) Nordell Sewer Slide Rule; one (1) 4160 Chemist's 10" Mahogany Duplex slide rule; and one (1) 4088-3 Polyphase Duplex Slide Rule. All comprised of

Antique Keuffel & Esser Co. sextant in wood storage box. Marked New York No. 36409. Etched U.S. Navy 3063 on rim. Wood box approx. 5.5"H x 9.25"L x 9.25"W. Photos are considered part of the descriptio

Keuffel & Esser Surveyor's Transit w/Wooden Tripod. Wonderful surveyor's transit scope from Keuffel & Esser. The transit scope is made in metal with brass details and comes with a wooden tripod with m