File:Vintage Keuffel & Esser Company Beginner's Slide Rule, No. 4058C, All Wood Framed Cursor, Made In USA, Circa 1930s (46171984654).jpg
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![File:Vintage Keuffel & Esser Company Beginner's Slide Rule, No. 4058C, All Wood Framed Cursor, Made In USA, Circa 1930s (46171984654).jpg](https://upload.wikimedia.org/wikipedia/commons/thumb/b/be/Vintage_Keuffel_%26_Esser_Company_Beginner%27s_Slide_Rule%2C_No._4058C%2C_All_Wood_Framed_Cursor%2C_Made_In_USA%2C_Circa_1930s_%2846171984654%29.jpg/800px-Vintage_Keuffel_%26_Esser_Company_Beginner%27s_Slide_Rule%2C_No._4058C%2C_All_Wood_Framed_Cursor%2C_Made_In_USA%2C_Circa_1930s_%2846171984654%29.jpg?20210506062308)
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[edit]DescriptionVintage Keuffel & Esser Company Beginner's Slide Rule, No. 4058C, All Wood Framed Cursor, Made In USA, Circa 1930s (46171984654).jpg |
English: Keuffel & Esser "Beginner's Slide Rule", model 4058C, wood-framed cursor, made in USA, circa 1930s. This is a low-cost slide rule intended for students and other beginners, with its scales printed directly on wood rather than engraved into celluloid facing. It is a basic "Mannheim-type" slide rule, with two single-decade (1-to-10) scales C and D for ordinary multiplication and division, and two two-decade (1-to-100) scales A and B for calculations involving squares and square roots. (The slide, which is removable and reversible, also has sine, tangent, and logarithm scales on its back side, here hidden.) |
Date | |
Source | Vintage Keuffel & Esser Company Beginner's Slide Rule, No. 4058C, All Wood Framed Cursor, Made In USA, Circa 1930s |
Author | Joe Haupt from USA |
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This image, originally posted to Flickr, was reviewed on 29 December 2023 by the administrator or reviewer Matrix, who confirmed that it was available on Flickr under the stated license on that date. |
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Date/Time | Thumbnail | Dimensions | User | Comment | |
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current | 06:23, 6 May 2021 | ![]() | 3,772 × 2,130 (2.82 MB) | Colin Douglas Howell (talk | contribs) | {{Information | Description = {{en|Keuffel & Esser "Beginner's Slide Rule", model 4058C, wood-framed cursor, made in USA, circa 1930s. This is a low-cost slide rule intended for students and other beginners, with its scales printed directly on wood rather than engraved into celluloid facing. It is a basic "Mannheim-type" slide rule, with two single-decade (1-to-10) scales C and D for ordinary multiplication and division, and two two-decade (1-to-100) scales A and B for calculations involving... |
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Camera manufacturer | Polaroid |
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Camera model | iS2132 |
Author | Picasa |
Copyright holder | Copyright 2012 |
Exposure time | 1/60 sec (0.016666666666667) |
F-number | f/3.9 |
ISO speed rating | 100 |
Date and time of data generation | 00:06, 27 January 2019 |
Lens focal length | 10.4 mm |
Horizontal resolution | 96 dpi |
Vertical resolution | 96 dpi |
Software used | 1.0900 |
File change date and time | 14:10, 27 January 2019 |
Y and C positioning | Co-sited |
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Date and time of digitizing | 00:06, 27 January 2019 |
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APEX exposure bias | 0 |
Maximum land aperture | 3.263 APEX (f/3.1) |
Metering mode | Multi-Spot |
Light source | Unknown |
Flash | Flash fired, strobe return light not detected, compulsory flash firing |
Supported Flashpix version | 1 |
Color space | sRGB |
File source | Digital still camera |
Scene type | A directly photographed image |
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Digital zoom ratio | 0 |
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Unique image ID | 2cb6a92eaf367782cb8bd3eaa24b9981 |
IIM version | 4 |