Antique map titled 'Sketch of the Straits of Gaspar'. Detailed sea chart of the Gaspar Strait, showing part of the Island of Banca on the east coast of Sumatra just to the south of Singapore. The Gaspar Strait is a strait separating the Indonesian islands Belitung and Bangka and connecting the Java Sea to the South China Sea. Also includes Salt Island, Middle Island and part of Long Island. Originates from 'East India Pilot' by Laurie & Whittle. Engraved by J. Huddart, 1788.