unused Block Larger Than four -- 5h. black on emerald, a fine block of ten from the upper left corner of the sheet, fine and fresh mint, also three mint singles. Williams 9 | Christie's

Lot 217

217

unused Block Larger Than four -- 5h. black on emerald, a fine block of ten from the upper left corner of the sheet, fine and fresh mint, also three mint singles. Williams 9

Details

unused Block Larger Than four -- 5h. black on emerald, a fine block of ten from the upper left corner of the sheet, fine and fresh mint, also three mint singles. Williams 9