VARIETY: DOUBLE PERFORATIONS – GJ 1069
COMMEMORATIVE, 1956 – NEW PROVINCE OF CHACO – COTTON, AGRICULTURE, FLORA – WITH SHEET CORNER, MNH
VARIETY: LITTLE PENCIL LINE NEAR THE FOREHEAD – GJ 988 + 988a
COMMEMORATIVE 1950 – PHILATELIC EXPOSITION – VARIETY IN POSITION 49 – BLOCK OF FOUR MNH (ONE VALUE HINGED, GJ 988)
VARIETY: LITTLE PENCIL LINE NEAR THE FOREHEAD – GJ 988 + 988A
COMMEMORATIVE 1950 – PHILATELIC EXPOSITION – VARIETY IN POSITION 49 – BLOCK OF FOUR MNH – WITH SHEET BORDER
