TURKISH EMPIRE - BELGIUM: 1860, unpaid letter (part contense) with frontside manuscript notation "TREBIZONDE le 3 April 1860" to Turnhout with Austrian postage due marking "20/15" with adjacent "7" (silbergroschen) of Trieste. In Belgium charged with a total of "11" decimes. Early letters of this post office, especially to Western Europe, are rare.
