Lot no. 6186

1867, Double rate "OFFICIAL BUSINESS"-cover from headquarters of U.S. infantery at Fort Donelson, Dover, Tennessee, sent from New York via Prussian closed mail to Cimbrishamn, charged on arrival with "306" öre, incl. 22 sgr. (= 198 öre) sea post credited to the US and 108 öre for the postage from German Postal Union to Sweden; a scarce military item with high postage due