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Description: | Single sheet, hand coloured engraving. Mercator projection. Two sets of diagrams above the map illustrate: Plain sailing in its most usual cases, and The usual cases of Wright's sailing.
From an unidentified navigation manual (perhaps by Patoun) Plate 3, Page 48. It illustrates the trigonometry needed to use a Mercator seachart.
Title Note: This chart is formed by Article 39. No.3. of practical Navigation.
caption: G201:1/34 world by Wright | Publisher: | "http://collections.rmg.co.uk/" | Rights holder: | "Royal Museums Greenwich" | Source: | Royal Museums Greenwich | Identifier: | http://collections.rmg.co.uk/collections... | Go to resource |
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