Interested in finding out more out about such calculating wonders?
Then try one of the slide rule related articles (often light-hearted) I have published.
Go to the search papers page.
You searched for: DIWA (Dansk Industri Waterpas A/S ) | |||||
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Model | Type | Material | Comments | Thumbnail | |
1-1 Rietz-Ideal | Rietz | plastic | Called Ideal because full complement of Trig scales included on front face |
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101 Log Log | Log-Log | wood/celluloid veneers | Veneers attached with screws/pins + table of conversion factors on back with 1 cursor window |
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201 Technical (ver.1) | Rietz | wood/celluloid veneers | Veneers attached with screws/pins + table of conversion factors on back with 1 cursor window |
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201 Technical (ver.2) | Rietz | wood/celluloid veneers | Veneers attached with screws/pins + table of conversion factors on back with 1 cursor window |
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301 Commercial | Enhanced Mannheim | wood/celluloid veneers | Veneers attached with screws/pins + table of conversion factors on back with 2 cursor windows |
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301 Rietz | Rietz | wood/plastic veneers | Table of conversion factors on back with 1 cursor window |
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501 Rietz | Rietz | plastic | 1 cursor window in back |
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551 | Darmstadt | plastic | Unusual layout |
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601 | Pocket Promotional Rietz | plastic | Version of 621 but primarily a model for a promotional slide rule - in this case for Danish supplier of light-weight concrete SIPOREX + company details on back with 1 cursor window |
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601-1 | Pocket Rietz | plastic | Later version of 601 + 1 cursor window in back |
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611 | Pocket Electro | plastic | V and W scales in the well of the stock + 1 cursor window in back |
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621 Technical | Pocket Rietz | plastic | 1 cursor window in back |
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631 Commercial | Pocket Enhanced Mannheim | plastic | Specially commissioned by Swedish company Elektromekano & printed on back + 1 cursor window in back |
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701 | Rietz | plastic | A “cheaper” model (all scales on front face) for schools + inch scale “upside down” |
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710 Teknilog | Technical | plastic | Impressive complement of scales but possible OEM by Japanese maker Ushida Yoko |
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741 Businessman Export | Technical two-tone | plastic | From construction, two-tone nature, scale layout, & cm + inch scale on back OEM by Japanese maker Ushida Yoko |
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