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Chesterholme. en Chesterholme Northumberland England isometric drawing from the title page of Treatise on Isometrical Drawing as Applicable to Geological and Mining Plans by Thomas Sopwith google co uk id ClVkAAAAMAAJ pg PP zoom hl en sig ACfUUIqehmoCvCmdbvfoaUNVWNMQ ci edge Google Books Engraving after drawing by Thomas