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: Gebr. Wichmann | |||||
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Model | Type | Material | Comments | Thumbnail | |
1418 R III | Rietz | wood/celluloid veneers | OEM by Nestler - cm scale in well - table of constants on back + 2 cursor windows |
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1425 | Enhanced Mannheim | wood/celluloid veneers | OEM by Nestler - cm scale in well - table of constants on back + 2 cursor windows |
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1427 | Rietz | wood/celluloid veneers | OEM by Dennert & Pape - D&P + DRP No. 126499 in well of stock + conversion tables on back + 1 cursor window |
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431 | Mannheim | metal/cardboard | Model from the earliest known series - table of conversion factors on back |
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4429 | School Rietz | wood/celluloid veneers | OEM by Faber-Castell with cm & inch scales on back + 2 cursor windows |
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4430 | Pocket Enhanced Mannheim | wood/celluloid veneers | OEM version made by Dennert & Pape + cm & reversed inch scale on back + 2 cursor windows |
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4477 | Darmstadt | wood/celluloid veneers | OEM by Faber-Castell with cm scale in well + 2 cursor windows in back |
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1919R | Desktop Rietz | wood/celluloid veneers | OEM by Nestler - cm scale in well of stock + hand-written list of formulas on back |
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Drieskalen | Rietz | wood/celluloid veneers | OEM by Nestler - table of constants on back + 2 cursor windows |