1919 4k carmine and black, center inverted, n.h., fine and rare, pencil signed, cat. $2750 (Cat No. 222a) (Image)

Cat. $2750, Est.US$2,000

1951-62 Boy Scouts, two different imperforate black proofs, the former on thick, glossy paper, the latter on matte, thin paper, v.f. (Cat No. 576,584P) (Image)

Est.US$150

1962 Boy Scout Issue, imperforate single, n.h., v.f., only 50 printed (ANK 1153U) cat. €800 (Cat No. 684var) (Image)

Cat. €800, Est.US$250

1922 300k-4,800k imperforate horizontal pairs, complete set, first four n.h., others unused without gum (as issued), v.f. (ANK 425-432U) cat. €1500 (Cat No. C4-11var) (Image)

Cat. €1500, Est.US$500

1933 WIPA souvenir sheet, h.r. at top, with slight marginal toning, stamps n.h., v.f., cat. $2500 (Cat No. B111) (Image)

Cat. $2500, Est.US$750

1930-35 selection of 34, mostly different covers and cards, variety of flights, destinations, drops (including Cape Verde, Orly, Konigsberg, Leipzig), cachets, many scarce items (retail up to $1,800); also included are 10 scarce picture postcards or photographs of various Airships in flight, occasional flaws, generally fine-v.f. (Image)

Est.US$1,500

1918 4kr green, block of four, n.h., well centered, v.f., with 2016 Colla certificate. A very rare block, especially in superior condition (Sass.17, Euro 24,000) cat. $10400 (Cat No. N16) (Image)

Cat. $10400, Est.US$2,500