Auction 333-341 Nigeria, Cameroon, Sudan & Worldwide Postal History - Day 4

1866: 20 pa. rose, Vienna Printing, perf. 12, a single example used on 1866 cover to Belgrade tied by framed "Naplaceno" (Paid) handstamp in slightly watery blue ink, with despatch cds "PARACINSKE 21/9" at upper right and Belgrade arrival (Sept 23) on reverse in black. File fold at top and side flap missing but a very rare stamp on letter Michel = € 1'000.