1863, 2¢ black, Double Perforations. 17 stamps; 5 horizontal double perf varieties (two ex Allen, one illustrated in Lane page 143), one on cover showing double perfs at top and bottom, 12 are vertical double perf varieties including 4 on cover with two showing double perfs on both sides, off cover includes pair with double perfs between (s.e. gutter with guideline at right), right gutter margin single with double perfs in margin from fold over; few small flaws, generally F.-V.F. Scott No. 73  Estimate $400 - 600. $0 (Image)