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Description: | This original protraction is formally titled. The traverse routes are noted with the relevant dates and Ordnance Survey field-book page numbers. The conventional sign of a dot within a triangle indicates a trigonometrical point. These appear around the edges of the drawing in red ink, marking the points from which the surveyor took angular measurements to plot features of the landscape. | License: | http://www.bl.uk/services/copy/permission.html | Rights holder: | British Library | Subjects: | Roads Plans Cartography And Topography Transport Infrastructure Science And Technology Rivers and waterways Maps | Source: | Collect Britain | Creator: | Collard, Thomas W. | Identifier: | http://www.collectbritain.co.uk/personal... | Language: | en-GB | Go to resource |
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