
1col black, 2col black, 5col black & 10col black AIR issue with 'V Congreso Postal Panamericano Rio de Janeiro' overprint in red, PREPARED FOR USE BUT UNISSUED. The set of four fine mint, very scarce only 1000 sets were printed. (Mena NE2/5)
1col black, 2col black, 5col black & 10col black AIR issue with 'V Congreso Postal Panamericano Rio de Janeiro' overprint in red, PREPARED FOR USE BUT UNISSUED. The set of four fine mint, very scarce only 1000 sets were printed. (Mena NE2/5)