Computer History Museum
Contex-30 electric calculator
Object consists of: calculator, blue plastic cover, manual.
- Type
- Physical Object
- Catalogue number
- 102626407
Slide rule
"Hoffman" is printed on back side of central slider.
- Type
- Physical Object
- Catalogue number
- 102626622
Slide rule
The object consists of a slide rule and carrying case. "LENNOX Industries Inc." is printed on the back of the slide rule and case.
- Type
- Physical Object
- Catalogue number
- 102631461
Slide rule
The object consists of a slide rule and slip case. Printed on the back of the slide is "Morris centrifugal pumps-hydraulic dredges".
- Type
- Physical Object
- Catalogue number
- 102631470
Slide rule
Object consists of slide rule and case.
- Type
- Physical Object
- Catalogue number
- 102631471
Slide rule
The object consists of a slide rule and carrying case.
- Type
- Physical Object
- Catalogue number
- 102631514
Slide rule
Object is a small plastic slide rule scaled for electrical engineering calculations.
- Type
- Physical Object
- Catalogue number
- 102631561
Slide rule
The object consists of a slide rule, brown leather case, and a paper box. Handwritten in red ink on the exterior of the leather case is "Hans Christiansen". Handwritten on the inside flap of the case is "Hans Christiansen Ringgare 108".
- Type
- Physical Object
- Catalogue number
- 102666588
Hugo: Jungle island 2
Game instructions (1) CD
- Type
- Software
- Format
- Packaged Software: CD
- Catalogue number
- 102715779
Hugo: The secrets of the forest
Game instructions (1) CD
- Type
- Software
- Format
- Packaged Software: CD
- Catalogue number
- 102715780
Drafting table
The object is a table divided into two sections or unequal size. The larger section can be raised and lowered by means of a crank attached to the side of the object.
- Type
- Physical Object
- Catalogue number
- 102733579
Dacta kit
Object is a child's building set for construction of a variety of electric-motor-driven models.
- Type
- Physical Object
- Catalogue number
- 102757741
Dacta kit box
- Type
- Physical Object
- Catalogue number
- 102757742
Direct Reading Frequency Response Slide Rule (servo frequency response)
A very fancy slide rule or nomograph consisting of a large plastic holder inco which 11 (or 25 possible) white plastic slide will fit. Comes in a fine leather case containing the slide holder, a large cursor that fits over the holder, 25 white slides, and a special cleaning brush to make sure the interior of the holder is kept free of dust and dirt.
- Type
- Physical Object
- Catalogue number
- X3.81
Bohn Contex Desk Calculator
- Type
- Physical Object
- Catalogue number
- X43.81
Hoffman slide rule
Object consists of slide rule and carrying case. Dimensions are of slide rule
- Type
- Physical Object
- Catalogue number
- X900.88A-B
Slide rule
- Type
- Physical Object
- Catalogue number
- 102666444
Slide rule
- Type
- Physical Object
- Catalogue number
- 102666450
Slide rule
- Type
- Physical Object
- Catalogue number
- 102666457
Slide rule
- Type
- Physical Object
- Catalogue number
- 102666530