This set of very unusual and uncommon wood engraved maps appear like a photographic negative, with black backgrounds and white lines. The set includes Western Hemisphere; Eastern Hemisphere; North America; Africa; Map of the Polar Regions, Shewing all the Discoveries as Made by British Officers, including Ross, 1st & 2nd Voyage, Parry, 1st 2nd 3rd Voyage, Franklin, Scores by &c. from 1818 to 1833; and Plan of Dporto & Environs. Engraved by Joshua Archer and published by William Edwards.

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Condition: B+

Light toning and marginal soiling. There are a few short tears in lower and right-hand blank margins of <i>Western Hemisphere</I>, one of which just enters neatline at right.