unused ½a. block of four showing wide and narrow "B"; 2a. block of four, 4a. and 12a. each showing inverted "s" in "British", fine mint | Christie's

Lot 179

179

unused ½a. block of four showing wide and narrow "B"; 2a. block of four, 4a. and 12a. each showing inverted "s" in "British", fine mint

Details

unused ½a. block of four showing wide and narrow "B"; 2a. block of four, 4a. and 12a. each showing inverted "s" in "British", fine mint