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Caernarvon

Caernarvon

Draughtsman: Dawson, Robert

Medium: Pen and ink on paper

Date: 1816

Shelfmark: OSD 306

Item number: 25

Length: 50

Width: 30

Genre: Map

Map scale ratio: 2'' : Mile (1 : 31680)

This drawing of Caernarfon Bay is formally titled in the top left margin. An area calculation table survives in black ink with the area surveyed totalling 160;184.1761 square miles. Archaeological sites are named in gothic script. Colour washes depicting relief are combined with numerical annotations ('spot heights') in red ink, indicating the heights of hills. Pencil rays radiate from trigonometrical stations across the map. These were used for measuring and plotting topographical features.

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