K&E 4012 Thacher Cylindrical Slide Rule

Keuffel & Esser (K&E) 4012 Thacher Cylindrical Slide Rule, serial number 3596. Comprised of a brass core covered by paper marked with forty A scales, surrounded by an open rotating frame with twenty m

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 4012 Thatcher Cylindrical Slide Rule, retailed by F. Weber & Co. circa 1915, fitted in its original mahogany travel case. Dimensions:dimensions of case 6 1/2 x 24 x 6 1/2in

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.

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, 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

A Stanley 'Fuller Calculator' Cylindrical Slide Rule, early 20th century, brass mounted mahogany, fitted in its original mahogany travel case. Dimensions:dimensions of case 4 1/2 x 18 x 4 1/4in

Stanley Fuller Calculator Cylindrical Slide Rule. W.F. Stanley & Co., New Eltham, London. With case and manual. Case 18"l.

English, c.1921-1923, number 7870 (no preceeding letter) in nickel plate with white on black scales, cursor a single tube with index marks in the form of arrows, no address on scales, in fitted velvet

Two Stanley 'Fuller Calculator' Cylindrical Slide Rules, 20th century, bakelite and mahogany, each fitted in its original mahogany travel case. Dimensions:dimensions of case 4 3/4 x 18 x 4 1/4in

OTTIS KING CALCULATOR WALKING STICK. CYLINDRICAL SLIDE RULE, SCALE 414. 36" L

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

Filotecnica Model 201 Back-Light Screen Projection Slide Rule, Italy c. 1955 In the early 1950s the company Filotecnica Salmoiraghi, well known for its precision equipment, developed a slide rule that

Rule

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

Keuffel & Esser (K&E) 4090 universal slide rule, PN 19-19-19-19-19-19. Marked "Keuffel & Esser Co. N.Y., Pat. Oct. 6, 1891". Comprised of two-sided white celluloid coated mahogany, black metal framed

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

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

A Stanley Fuller Calculator Circular Slide Rule w. f. stanley & co. ltd., london, 1950 with a fitted wood case and brass mounting arm, together with a Fowlers: Twelve-Ten calculator. Length of first 1

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

1st item: Eckel Dial-O-Matic Engineer's or Engineer's Log Log slide rule, manufactured by Lithocalculator Company, Arcadia, California, circa 1955. Comprised of two celluloid-coated aluminum disks, on

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

Seven (7) Keuffel & Esser (K&E) duplex slide rules, including two (2) 4160 Chemist's slide rules; one (1) N4081-5 20" Log Log Decitrig slide rule; one (1) 68-1200 Log Log Duplex slide rule; one (1) 40

Gigantic "PICKETT All Metal Slide Rules". This is made of WOOD. See photos for scale. -- Dimensions: H: 12.5 inches: W: 84 inches: D: 1 inches ---