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

1870: 1 r. rose, a fine used example with good margins all round and showing small portion of adjoining stamp at left, used on 1876 cover to Buenos Aires, Argentina tied by ASUNCION circular datestamp in blue (May 6) with Buenos Aires arrival cds on reverse (May 10) and struck with circular "CORREOS URBANOS / 4 cvos." charge marking in black on obverse. Rare and most attractive Scott = $ 2'000.