9 Slide Rules & Calculating Devices

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 DIETZGEN, POST, LUTZ, PICKETT, KEUFFEL, & MORE. ORIGINAL AS FOUND CONDITION. UNKNOWN IF COMPLETE.

Here is a large lot of important devices for pilots and mathematicians....including......Deci-lon Slide Rule ($64 used).....DorCliff Super Plotter for pilots--pilots know that a plotter left in the su

circa 1940. circular slide rule type device used in fixing navigation points at sea. L11" Note: Writing on fitted box includes "German Submarine U865". U-865 was launched July 12, 1943 and went missin

Including a Keuffel slide rule, Borg Warner slide rule, a Roller Rule pencil "the pencil with a brain", and other measuring devices.

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

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

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

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.

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

Collection of 9 Abaci Various models, Russian, Chinese and Japanese versions of this early calculating device. - In addition: "Nobby Number Line", arithmetic aid for primary schools. Sammlung "Abakus"

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. -

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.

The manual is copyright 1891 so the slide rule is potentially 1890s. This is a very early version of one of the most scientific computing devices.Date: Country (if not USA): State: City: Provenance:

Radio, Zenith Wavemagnet, 2-tone wood case w/wrap-around grill, slide rule black dial, AM broadcast & 2-shortwave bands, c.1940, Exc wkg cond, 9"H x 15.5"W x 9.5"D.

XxX ('X multiplied by X') Calculating Machine, 1906 onwards Seidel & Naumann, Dresden. Early serial no. 741, stepped-drum machine with setting slides, 9 input sliders, 8-digit revolution counter, 13-d

Stereo Viewer, Stereo Cards and Related Material 1) London Stereoscopic Company. Deluxe stereo viewer for 9 x 18 cm slides and cards, burr-wood veneer, missing focusing device and small section of woo

Appearing to date from the early 1900’s, measuring 9 1/4” x 6 1/4”, made with a slide lid and two-section interior. The dark exterior paint is accented by gold rule and decorated sid

Ten (10) Keuffel & Esser (K&E) Slide Rules. 1st item: K&E 4061 Polyphase Duplex slide rule. Comprised of two-sided celluloid coated mahogany, with frameless glass cursor with plastic edges held togeth

'9 Calculating Machines 1) "Thales A", c. 1914, spoked-wheel machine, serial no. 10485, 9, 8 and 13 digits, mechanism sticks, with wood cover. (3/4) - 2) "Hamann Automat V", c. 1933, switching latch s