SoldPatent Circular Slide Rule by HaldenPatent Circular Slide Rule by Halden: called a calculex, made in England. No condition problems. 2 5/16" wide All items sell As Is, Where Is, no guarantees of any kind. We accept Mastercard & Visa, noSee Sold Price
Sold3 Logarithmic Calculating Discs3 Logarithmic Calculating Discs 1) "Fowler's Magnum Long Scale Calculator", c. 1948. 4 ¾ in. diameter. With leather case. – 2) Circular slide rule "Halden Calculex", c. 1920. Double-sided BritishSee Sold Price
SoldHALDEN'S CALCULEX CIRCULAR SLIDE RULEHALDEN'S CALCULEX CIRCULAR SLIDE RULE, fitted with original bevel-edge glass on each side, later case. First quarter 20th century. 2 3/8" D.See Sold Price
SoldA twentieth century Stanley-Boucher circular slidA twentieth century Stanley-Boucher circular slide rule with top wind and side adjuster - the dial marked 'Stanley Boucher Patent Calculator'. Case 5.2cms diameter.See Sold Price
SoldA twentieth century Stanley-Boucher circular slidA twentieth century Stanley-Boucher circular slide rule with top wind and side adjuster - the dial marked 'Stanley Boucher Patent Calculator'. Case 5.2cms diameter.See Sold Price
SoldA 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 1See Sold Price
Sold3 Calculating Watches and 1 Circular Slide Rule3 Calculating Watches and 1 Circular Slide Rule 1) "E.A. Sperry's Calculator", c. 1910, made by Keuffel & Esser, 2-sided, Ø 2 1/10 in. - 2) "Fowler's Universal Calculator", c. 1927, made in ManchestSee Sold Price
Sold1960s Circular Slide Rules LotLot Circular Slide Rules (1) 8-inch Gilson slide rule, in case (1) 4-inch Pickett slide rule model # 109ES, no case, (1) 6-inch Tropospheric Scatter Calculator by Collins, with instructions from 1964See Sold Price
SoldScientific Circular Slide RuleScientific circular slide rule made by Keuffel & Esser Co., NY, 5 1/2"h x 21 1/2"l x 5 1/2"w. Some piece of ruler missing.See Sold Price
Sold1969, RCA Reference Table and Circular Slide Rule1969, RCA Reference Table and Circular Slide Rule (4 x 3") RCA Reference Table and Circular Slide Rule and instruction book. Ex. The collection of the estate of a former RCA chief executive. ExcellentSee Sold Price
SoldA Patent Slide Rule by R F Agnew,English, dated 1913, in boxwood, for the cloth trade with both metric and imperial scales for length and weight, stamped 'R F Agnew's slide rule No 22165 1913 patent applied for', length 60cm. Note: tSee Sold Price
1960s Circular Slide Rules LotLot Circular Slide Rules (1) 8-inch Gilson slide rule, in case (1) 4-inch Pickett slide rule model # 109ES, no case, (1) 6-inch Tropospheric Scatter Calculator by Collins, with instructions from 1964See Sold Price
Scientific Circular Slide RuleScientific circular slide rule made by Keuffel & Esser Co., NY, 5 1/2"h x 21 1/2"l x 5 1/2"w. Some piece of ruler missing.See Sold Price
Sold1940s CIRCULAR SLIDE RULE TYPE INSTRUMENTSWorld War II era aircraft instruments including: True Airspeed computer printed white on black and Altitude Correction Computer yellow on black. Both are 8 in diameter & are in their original boxes anSee Sold Price
Sold8 Circular Slide Rules, incl. Dietzgen 1798Eight (8) circular slide rulers, including Dietzgen 1798 Dempster RotaRule Model A, various Gilson models, and more. 1st item: Dietzgen 1798 Dempster RotaRule Model A 50-Inch Pocket Slide Ruler, desigSee Sold Price
Sold5 Early Calculators/Slide Rules, incl. G. SmallFive (5) early calculators or slide rulers, including one (1) G. Small Pocket Calculator, Roberts Everard type box rule, G. Charpentier Calculimetre, Sexton's Omnimetre Circular Slide Rule, and one (1See Sold Price
SoldWWII German U-Boat Navigation Calculatorcirca 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 missinSee Sold Price
SoldProfessor Fuller's Spiral Slide Rule-1916Fuller circular slide rule, c. 1916, Professor Fuller's calculating slide rules booklet, a logarithmic scale of numbers 41' 8" long which is equivalent to a straight slide rule 83' 4" long, mfg. onlySee Sold Price
Sold5 Pocket Watch Style Circular Calculators, incl.Five (5) Pocket Watch Style Logarithmic Circular Slide Rule Calculators, including four (4) Fowler's calculators, 5 items total. 1st-4th items: Four (4) Fowler and Company, Manchester, England, calculSee Sold Price
Sold9 Elevation & Other Measuring Devices9 Elevation & Other Measuring Devices: E.J. Schlatter Stereo Elevation Meter & booklet; Standard-Vacuum Oil Company Correct Lubrication & Circular Slide Rule; Johnston Pump Co. Circular Slide Rule; ArSee Sold Price
SoldGemini Program Agena Maneuver Slide RuleCircular slide rule (7.25") diameter used to assist in the docking and undocking of the Gemini spacecraft with the Agena. It bears serial number 203, and is excellent working condition. ExceptionallySee Sold Price
SoldA collection of eleven parallel and rolling rulersA collection of eleven parallel and rolling rulers, including brass military types and ebony marked PT Scotland and 1888, two in fitted cases and a circular slide rule (12)See Sold Price
Sold5 Early Calculators/Slide Rules, incl. G. SmallFive (5) early calculators or slide rulers, including one (1) G. Small Pocket Calculator, Roberts Everard type box rule, G. Charpentier Calculimetre, Sexton's Omnimetre Circular Slide Rule, and one (1See Sold Price
Lot 6 Eugene Dietzen Co Engineering Trig SlideThe Benefit Shop Foundation Inc.4.3(2.9k)See Sold PriceFeb 28, 2024
Brand: Vintage Breitling Model Name: Navitimer Reference: 806 Complication: Chronograph Movement:Sterling Vault Auctioneers4.3(12)See Sold PriceFeb 29, 2024
Breitling Navitimer Automatic 35 Silver Dial Steel Ladies Watch A17395Pacific Global Auction3.9(280)See Sold PriceFeb 27, 2024
Breitling Navitimer 1 Black Dial 41mm Steel Mens Watch A17326 Box CardGolden Gate Auctioneer4.1(278)See Sold PriceFeb 25, 2024
Breitling Navitimer Classic Limited Edition Rose Gold Mens Watch H30330 Box PapersGolden Gate Auctioneer4.1(278)See Sold PriceFeb 25, 2024
Breitling Navitimer 1 41mm Steel Rose Gold Mens Watch U17326 Box CardGolden Gate Auctioneer4.1(278)See Sold PriceFeb 29, 2024
Breitling Navitimer World Black Dial Steel Mens WatchGolden Gate Auctioneer4.1(278)See Sold PriceFeb 24, 2024
Breitling Navitimer 1 Black Dial 41mm Steel Mens WatchGolden Gate Auctioneer4.1(278)See Sold PriceFeb 24, 2024
Breitling Bentley Motors Black Dial Chronograph Mens WatchGolden Gate Auctioneer4.1(278)See Sold PriceFeb 24, 2024
Vintage Frederick Post Co #1460 Versalog Hemmi Bamboo Slide ruleEagles Corps International LLC4.5(107)See Sold PriceMar 10, 2024
A Collectors Lot Of Medical & Scientific Instruments,Flints Auctions Ltd4.4(71)See Sold PriceMar 01, 2024
Breitling Navitimer Automatic 35 Silver Dial Steel Ladies Watch A17395Golden Air Auctions4.3(265)See Sold PriceFeb 29, 2024
Breitling Navitimer 01 46mm Steel Rose Gold Black Dial Watch UB0127Golden Air Auctions4.3(265)See Sold PriceFeb 28, 2024
(2) ERNST PLANK MAGIC LANTERNS, ONE WITH SLIDESAustin Auction Gallery4.7(1.2k)See Sold PriceApr 12, 2024
(3) MAGIC LANTERNS BY JEAN SCHOENNER, GERMANYAustin Auction Gallery4.7(1.2k)See Sold PriceApr 12, 2024
(2) FRENCH MAGIC LANTERNS, ROTATING GLASS SLIDESAustin Auction Gallery4.7(1.2k)See Sold PriceApr 12, 2024
(4) MAGIC LANTERNS BY JEAN SCHOENNER, GERMANYAustin Auction Gallery4.7(1.2k)See Sold PriceApr 12, 2024
(6) MAGIC LANTERNS, DANNHORN, PLANK, GERMANYAustin Auction Gallery4.7(1.2k)See Sold PriceApr 12, 2024
Breitling Navitimer 01 Black Brown Dial Limited Edition Steel MensPacific Global Auction3.9(280)See Sold PriceFeb 28, 2024
