1804 (4 Dec) letter from Madrid, sent via La Coruna to Montevideo and Buenos Aires, with red Espana straight line handstamp indicating a letter from Spain, received in the Rio De La Plata territory (Argentina, Chile, Uruguay)
1864-72 Rivadavia Issue, 5c, 10c and 15c reimpressions in black (made in 1964 from the original plates by A. Liechtenstein), blocks of four, v.f.
1899 Liberty, 5p orange & black, center inverted, usual, evenly toned original gum, h.r., well centered for this difficult stamp, signed Rosalia etc., with 2002 APS certificate. Only 50 printed,
Catalog Value $ 2,750
1917 San Martin, 20p dull blue & claret, center inverted, bottom left corner margin block of four, never hinged, centered to left as always, with 2005 Philatelic Foundation Certificate. Only 50 issued, all off-centered (Kneitchel No.312a "todos los ejemplares de esta hojo unica son descentrados"). This is the only known unhinged sheet corner margin block of four of this popular invert (catalogue value for hinged singles),
Catalog Value $ 6,000