incoming folded letter datelined "Surinam 24 Juin 1786", addressed to Philadelphia, manuscript "2.16" [dwt] rate for 2dwt postage and 16gr ship fee, very fine and scarce early cover from the Dutch colony of Suriname, it is not known why the Baltimore post office did not place any postal markings on this cover, although based on the 2dwt rate both New York and Boston are excluded as possible ports of entry