Two very contrasting maps within a single border. Each map covers the north Pacific, including the continents bordering it. The top map depicts the theories of Philip Buache concerning the Northwest Passage, with numerous possible routes through North America, including Lace de Valasco, Lac de Fonte and Mer de l'Ouest. Alaska is shown as an elongated island. In Asia, Kamchatka is fairly well formed but Japan is still quite misshapen. The bottom chart depicts the region per Kaempfer, with Japan nicely detailed, but the coasts of both Asia and North America very deformed.

References: Falk (AK) #1752-2; Wagner (NW), pp. 158-162; Pedley #452; McGuirk #146; Kershaw #1230.

Condition: B+

Issued folding on watermarked paper with wide margins and a couple of minor spots.