File:Surveying signal Fig 21 WBClark 1898.jpg
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[edit]DescriptionSurveying signal Fig 21 WBClark 1898.jpg |
English: Figure 21 of 1898 publication called Maryland Geological Survey Volume Two. Caption: "Signal" This shows a signal located at a survey station used in triangulation. The text states that the figure shows "a form of framed signals adapted for use on the treeless plains of Kansas and the rolling open hills of New England, and elsewhere, where observing towers are not necessary." |
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Transferred from en.wikipedia to Commons.
(Original text: Original publication: Maryland Geological Survey Volume Two, by W. B. Clark, 1898. Johns Hopkins University Press. |
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creator QS:P170,Q8006126 |
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[edit]Public domainPublic domainfalsefalse |
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Date/Time | Dimensions | User | Comment |
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2015-01-17 02:42 | 1017×1372× (107446 bytes) | Jstuby | {{Information |Description = Figure 21 of 1898 publication called Maryland Geological Survey Volume Two. Caption: "Signal"<br>This shows a signal located at a survey station used in [[triangulation]]. The text states that the figure shows "a form of f... |
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current | 02:48, 16 March 2016 | 1,017 × 1,372 (105 KB) | FastilyClone (talk | contribs) | Transferred from enwp |
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