Sold2016Comptometer Mechanical CalculatorMechanical calculator by Felt & Tarrant Manufacturing. Stamp bears patents up to Nov 1920. Dimensions: 11.00 " W x 6.00 " H x 15.00 "D; See Sold Price
Sold20181950 Curta Mechanical CalculatorA 1950 Curta Mechanical Calculator that was made in Liechtenstein by Contina AG Mauren Type 1 no 76925. Comes with original System Curt Herzstark Curta packaging. Before electronics were used to makeSee Sold Price
Sold20221951 Curta Type I Mechanical CalculatorA Curta Type I pocket calculator with its original metal case, serial number 10364 (August 1951). The Curta was designed by Austrian engineer Curt Herzstark(1902-1988) in the late 1930s, thoughHerzstaSee Sold Price
Sold2022Curta Type 1 Mechanical Calculator Serial Number 54416Curta Type 1 Mechanical Calculator Serial Number 54416. Comes with bottom only of original container. In good condition.See Sold Price
Sold2024Curta Type I Mechanical Calculatorserial no. 14885 Calculator: 4 3/4 x 2 1/2 in. (12.1 x 6.4 cm.) Provenance: Property from the Estate of Larry Mendelson, Encino, CASee Sold Price
Sold2020Vintage Early 1900s Mechanical Calculator Class 3This is a vintage mechanical calculator from the early 1900s made by Burroughs. It still has its original paper attached. The model number is 3-879747. It is in good condition with known ware and foxiSee Sold Price
Sold2018A BRASS MECHANICAL CALCULATOR 'THE ADDER' PAT 1868A brass mechanical adding machine with two wheels, mounted in a wooden frame, 'The Adder' by C.H. Webb, patent dated 1868. Measures 7 x 4.75 inches. We happily provide seamless in-house packing and shSee Sold Price
Sold2022Mechanical calculator "Odhner Arithmometer". Sweden, ca. 19Mechanical calculator "Odhner Arithmometer". Sweden, ca. 1935. Afm.: 15 x 30 x 11 cm.See Sold Price
Sold2020Vintage Fowlers Mechanical CalculatorIn Original Case, 3.25" Diameter. Condition: Good with Losses to Case, Working Condition Unknown.See Sold Price
Sold2016"Machine d'Arithmétique" of 1652Machine d'Arithmétique of 1652 Excellent replica of world's first mechanical calculator by Blaise Pascal, Paris. The first mechanical calculator for addition and subtraction produced in series was deSee Sold Price
Sold2024Curta CalculatorCurta hand held mechanical calculator by Curt Herzstark, Liechtenstein. The world's first mechanical calculator. Model: Type II No.: 557002. Given in a Bakelite box. Box height: 12 cm. Signed. ExcelleSee Sold Price
Sold2015An Improved Arithmometer by S. Tate, London, PatentedAn Improved Arithmometer by S. Tate, London, Patented 1903. An early mechanical calculator, Labeled 'S. Tate, Patentee and Sole Maker, London.' Complete with detachable crank. H: 6 1/4 W: 22 1/4 D: 7See Sold Price
Sold2021Curt Calculator (Type II)Curt Calculator (Type II) hand-held mechanical calculator, with its original case. While not a photographic rarity, we find this item fascinating. Sometimes known as "peppermill calculator," it has alSee Sold Price
Sold2016CONTINA LTD. MAUREN; SYSTEM CURT HERZSTARKCurta Model Type I Mechanical Calculator with original box and manual, Lichtenstein, Switzerland; Marked; 5 1/2" x 2 1/2" dia.See Sold Price
Sold2023c1950 Curta Type I Calculator w/ Original CaseReally cool vintage Curta mechanical calculator by Curt Herzstark. This Type I model, No. 58862, fits in your pocket and allows you to add, subtract, multiply and divide wherever you are. Comes in theSee Sold Price
Sold2023c1950 Curta Type II Calculator w/ Original CaseThis is an awesome Curta mechanical calculator by Curt Herzstark. It is a Type II No. 561282 and comes in the original case. Slips in your pocket so you can add, subtract, multiply and divide whereverSee Sold Price
Sold2021Strato Bank and Tin Monkey CalculatorBank is functional Strato Bank XU 232 and tin litho "Consult the Educated Monkey" mechanical calculator patent dating 1918 with original package.See Sold Price
Sold2022The 'Consul' Tin Monkey CalculatorA device for "Arithmetical Multiplication and Division" was patented in 1889 in Munich, and rapidly became the model for a whole row of mechanical calculators. The most popular of these was "Consul",See Sold Price
Sold2023Antique ca. 1925 THALES Mechanical Pinwheel CalculatorMeasures approx. 12" wide x 7" high. Good antique working condition with some wear according to age.See Sold Price
Sold2023Curta Type II Pin Wheel Black Calculator w/ CaseMechanical pocket calculator. Designed by Curt Herzstark. Circa late 1940's. Model serial number 557715. Able to perform addition. subtraction, multiplication and division. Housed in its black plasticSee Sold Price
Sold2016Unusual Cutaway Model of a Calculator Mechanism, earlyUnusual Cutaway Model of a Calculator Mechanism, early 20th Century Cross-section of a mechanical printing calculator with nine push-button digits, two readout wheels and rising ten-digit print bar, 8See Sold Price
Sold2020Curta Type II (Grey), 1971'Curta Type II (Grey), 1971 Serial no. 561550. Small mechanical stepped-drum calculator by Curt Herzstark, Vienna/Liechtenstein. With original metal box, 2 German instructions and sales box with identSee Sold Price
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