Rare Thacher’s Calculating Instrument / Slide Rule by

Thacher's Calculating Instrument Cylindrical Slide Rule Mahogany cylinder with numbers printed on accordion folded coated paper; in wooden case with manufacturer users manual Property from: a Gold Coa

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

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.

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

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

A Rare Slide Rule Snuff Box, French, early 19th century, the tortoiseshell and bois durci circular box with ivorine veneer scale, the top and base with moulded relief scenes of the Louvre and Pont de

1927 bound catalog of papers, drafting instruments, slide rules, measuring tapes and more. State: City: Date:1927 Provenance: Stuart Mackenzie Montana Ephemera Collection

A Rare Cretes Opthalmic Slide Rule, French, circa 1875, signed in manuscript Regles Calcul du Dr A Cretes. Cretes Optician Rue de Rennes 66 Paris, brass surround, card scale and slide, instructions in

English, c. 1820, in boxwood and brass, double sided with numerous finely divided logarithmic scales and early form of cursor, time side with scales marked Half Sum, Lat, Diff, Time PM, Time AM, cu gr

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

Vintage 1960s NOS Scientific Instruments Co. Electro Vector Log Log slide rule. no. 1570. Comes in original packaging and includes instruction booklet, warranty card, case and slide rule. The slide ru

2 Logarithmic Calculating Drums 1) Professor Fuller's Spiral Slide Rule Calculator, 1889 onwards, made in England by Stanley, with wood handle, in mahogany case. - And: 2) Calculator Loga, 23 3/5 in.

2 Logarithmic Calculating Drums 1) Professor Fuller's Spiral Slide Rule Calculator, 1889 onwards, made in England by Stanley, length of the barrel 11 ¾ in., with wood handle, in mahogany case. -

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

A rare vintage Faber-Castell 4/54 Darmstadt slide rule. Made in Germany, piece is in excellent functioning condition and comes in case. *note - case is marked for model 4/87

A group of eighteen circular slide rules and calculators, comprising: Scientific Instruments circular clide rule, No. 300-b with box and case, a Cruver computer, altitude correction AN5837-1 with box,

A RARE GENTLEMAN'S BREITLING NAVITIMER QUARTZ LED CHRONOGRAPH WRIST WATCH CIRCA 1978, REF. 9106 WITH ORIGINAL BOX & TAGS D: LED display with inner slide rule bezel. M: Quartz movement signed Breitling

4 Military Calculating Devices 1) Measurement triangle by Gebrüder Haff, Pfronten, Bavaria; for determining the distance of hostile artillery. - 2) English slide rule, for height/angle calculati

Antique vintage group of various statistical and computation devices and tools. Includes: Weiss Slide Rule in carboard printed wheel by C.H. Stoelting circa 1950 Correlation and Machine Calculation bo

including brass scales with weights, punch, bootjack hook and two slide rules. Tallest 5 in. The Lifelong Collection of Keith and Caroline Gray, Charlotte, NC. Keith and Caroline Gray were passionate

Nauticl lot from Jakob Isbrandtsen estate including a slide rule, a John Hand depth gauge, barometer, wind speed instrument, compass,dagger, two rules, bottle opener.

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