
50c brown violet in a block of four with the 20c brown violet ERROR OF COLOUR. This variety arose from a 20c cliché being included in the 50c sheet in error. A very fine unused block of four. Rare and underrated. (SG 79 & 79a)
50c brown violet in a block of four with the 20c brown violet ERROR OF COLOUR. This variety arose from a 20c cliché being included in the 50c sheet in error. A very fine unused block of four. Rare and underrated. (SG 79 & 79a)