Insufficiently franked letter from St. Kitts 10 April 1895 to St. Thomas, Danish West Indies. A 2 1/2d Leward Islands stamp affixed, not obliterated, and on arrival at St. Thomas charged 10 cents. A note on the letter ‘ad S.T. 448/95’, possible because a clerical note about the missing postage, reception mark ‘ST: THOMAS 11/4 1895’. A rare and unusual postage due letter.