BOURNS SLIDE RULE

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BOURNS SLIDE RULEBOURNS SLIDE RULE | VINTAGE COLLECTIBLE SLIDE RULE RULER ARCHITECT ALGEBRA TRIGONMETRY ENGINEER TOOL DRAFTING -CONDITION ALIGNS WITH VINTAGE WEAR -CASE BROWN -HS5721

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Filotecnica Model 201 Back-Light Screen Projection Slide Rule, Italy c. 1955Filotecnica 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

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1891 Keuffel & Esser Architects Slide RuleRule

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A Rare Thomson's Lunar Corrector Slide Rule by RobertEnglish, 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

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Keuffel and Esser 4090 Universal Slide RuleKeuffel & 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

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BREITLING - a Navitimer Chrono-Matic chronograph wrist watch. Stainless steel case with slide-ruleBREITLING - a Navitimer Chrono-Matic chronograph wrist watch. Stainless steel case with slide-rule bezel. Case width 48mm. Reference 1806, serial 1262558. Signed manual wind calibre 11. Black dial wit

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10 Keuffel & Esser Slide RulesTen (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

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A Rare Slide Rule Snuff Box, French, early 19th century,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

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A Stanley Fuller Calculator Circular Slide Rule LengthA 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

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K&E 4012 Thacher Cylindrical Slide RuleKeuffel & 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

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A Rare Cretes Opthalmic Slide Rule, French, circa 1875,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

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2 Circular Slide Rules, incl. Eckel Engineer's & RotaRule 5101st 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

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3 Keuffel & Esser Co. Slide Rules, incl. Nordell SewerKeuffel 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

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Keuffel & Esser 4012 Thatcher Cylindrical Slide RuleKeuffel & 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

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Antique Thacher's Calculating Instrument Slide Rule, Keuffel & EsserAntique Thacher's Calculating Instrument Slide Rule, Keuffel & Esser. This industrial wooden Victorian cylindrical calculator is mounted to a plaque base with original instructions and mathematical fo

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7 Keuffel & Esser Slide RulesSeven (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

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BREITLING CHRONOSLIDE NEW OLD STOCK STOP WATCH WITH CIRCULAR SLIDE RULE , CIRCA 1969Rare Breitling Chronoslide Ref. 1577, The First Timer With Circular Slide Rule. The stopwatch comes with the original box and papers. The stopwatch has a 7 jewel Valjoux caliber 320 movement signed Br

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Faber Castell Mathema 2/84 Slide Rule & TR4 Scientific CalculatorTwo (2) Faber Castell, Germany scientific items, including one (1) Mathema 2/84 Full Hyperbolic duplex slide rule, comprised of white plastic with a plastic cursor with hairlines and plastic edges hel

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A G. Bernhardt's Combined Slide Rule And Propelling Pencil, German, early 20th century, (4)A G. Bernhardt's Combined Slide Rule And Propelling Pencil, German, early 20th century, in silvered metal, together with a Nicolet slide rule pencil, a Dring & Fage brass rule and 6-inch brass sector,

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Pickett Slide Rule Trade Signdouble sided, 84" x 10 1/2"

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Antique Fuller Spiral Slide Rule Calculator by StanleyLondon; c. 1900. Fuller spiral slide rule / calculator by Stanley with original mahogany dovetailed case. 17" (43.3 cm)

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E.M. Scofield: The Engineers Slide RuleThe Engineers Slide Rule, made in USA by E. M. Scofield, Bridge Engineer, Youngstown, Ohio. Patent 1901-1902. Comprised of paper scales on boxwood. 24" L x 2" W x 1/2" D. Provenance: Private West Tenn

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Thacher's Calculating Instrument Cylindrical Slide RuleThacher'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

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Fuller Calculator Cylindrical Slide RuleA 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

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