20c Red, Perforated 10

HC, dated "Feb. 11, 1918", without control number, good color, rounded corner at T.L., light CR, Very Fine appearing example of this exceedingly rare variety with only four recorded of which two are on piece, all but one have CR's, an incredible rarity and only the second time we have ever offered this variety in the last 40+ years, a key 20th revenue item