细节
unused Pair, marginal, unused, good margins except at one point where just clear or just touched, showing portion of an adjoining stamp; crease and small corner crease, otherwise fine; a great rarity with a pair being the largest known unused multiple, this probably being the finest of the very few recorded
来源
Charles Lathrop Pack, First sale, 1944 lot 378
Dale-Lichtenstein, 1989, lot 337A
Dale-Lichtenstein, 1989, lot 337A