Gallery: The Surprising Complexity of Old-School Calculators

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    Kevin Twomey
    01

    Monroe-PC1421-SIDE-view

    Monroe PC1421, 2014.
  • Image may contain Electronics Computer and Hardware
    Kevin Twomey
    02

    Monroe-Mach-1.7-TOP-view

    Monroe Mach 1.07, 2014.
  • Image may contain Military Transportation Vehicle Amphibious Vehicle Military Uniform Army Armored and Tank
    Kevin Twomey
    03

    Monroe-Mach-1.07-SIDE-view

    Monroe Mach 1.07, 2014.
  • Image may contain Electronics
    Kevin Twomey
    04

    Cellatron-R44SM-FRONT-view

    Cellatron R44SM, 2014.
  • Image may contain Machine Motor and Engine
    Kevin Twomey
    05

    Marchant-EFA-SIDE-view

    Marchant EFA, 2014.
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    Kevin Twomey
    06

    Marchant-EFA-FRONT-view

    Marchant EFA, 2014.
  • Image may contain Machine Army Vehicle Transportation Military Armored Tank and Military Uniform
    Kevin Twomey
    07

    Friden-1217-SIDE-view

    Friden 1217, 2014.
  • Image may contain Machine and Electrical Device
    Kevin Twomey
    08

    Diehl-transmatic-FRONT-view

    Diehl Transmatic, 2014.
  • Image may contain Toy Machine Motor and Engine
    Kevin Twomey
    09

    Diehl-Transmatic-SIDE-view

    Diehl Transmatic, 2014.
  • Image may contain Electronics
    Kevin Twomey
    10

    Brunsviga-11s-TOP-view

    Brunsviga 11s, 2014.
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    Kevin Twomey
    11

    Hamann-300-SIDE-view

    Hamann 300, 2011.
  • Image may contain Machine Motor and Engine
    Kevin Twomey
    12

    Millionaire-Side-view

    Millionaire, 2014.
  • Image may contain Clothing Shoe Footwear Apparel Machine Motor and Engine
    Kevin Twomey
    13

    Cellatron-R44SM-SIDE-view

    Cellatron R44SM, 2014.
  • Brunsviga 11s 2014.
    Kevin Twomey
    14

    Brunsviga-11s-SIDE-view

    Brunsviga 11s, 2014.