1930 Issue, two complete sets of six, one overprinted "Muster", the other handstamped "Specimen", with or without gum, fine-v.f., rare (Cat No. C1-6S) (Image)

Est.$250

1930 25Rp brown, variety imperf. at top, h.r., also 1fr carmine brown, horizontal pair, variety imperf. at left, n.h., v.f. (Mi.110Uo,113Ul, Euro 580) (LBK SFr 700) (Cat No. C3,6var) (Image)

Est.$150

1930 1fr carmine brown, upper right sheet corner margin block of four, two stamps imperf. at right, n.h., v.f. (Mi.113Ur, Euro 1,000) (LBK SFr 1,200) (Cat No. C6var) (Image)

Est.$250

1931 Issue, three sets of two, overprinted "Muster" in red and in black, also handstamped "Specimen" in red, h.r., fine-v.f., rare (Cat No. C7-8S) (Image)

Est.$250

1931 Zeppelin set of two, used on flown cover and card, each from Vaduz to Lausanne, with appropriate markings, fine-v.f. (Mi. Euro 650) (Cat No. C7-8) (Image)

Est.$150

1934-35 Golden Eagle, two sets, n.h., fine-v.f., cat. $600 (Cat No. C9-13) (Image)

Cat. $600, Est.$150

1934 Birds of Prey, ribbed paper, complete set of five imperforate horizontal pairs, n.h., v.f., only 100 sets printed (Mi.143yU-147yU, Euro 10,000) (LBK SFr 12,000) (Cat No. C9-13var) (Image)

Est.$5,000

1936 Zeppelin, set of two sheet corner margin blocks of four, 1fr with two stamps hinged (two n.h.), 2fr with one stamp hinged (three n.h.), fine-v.f., cat. $455 (Cat No. C15-16) (Image)

Cat. $455, Est.$100

1936 Hindenburg Flight, imperforate horizontal pairs, n.h., v.f., only 100 sets printed (Mi.149-150U, Euro 10,000) (LBK SFr 12,000) (Cat No. C15-16var) (Image)

Est.$5,000

1939 Birds of Prey, complete set of seven imperforate horizontal pairs, n.h., v.f., only 100 sets printed (Mi.173-79U, Euro 11,000) (LBK SFr 14,000) (Cat No. C17-23var) (Image)

Est.$5,000

1948 Pioneers of Aviation, complete set of 11 miniature sheetlets of nine, including the 20Rp reddish brown, n.h., v.f. (Mi.257-66,259b, Euro 2,400) (LBK SFr 3,050) (Cat No. C24-33,26a) (Image)

Est.$500

1948 Flight Pioneers, complete set of 10 matching imperforate sheet corner margin, imprint singles, n.h., v.f., rare (Mi.257-266U, Euro 16,000) (LBK SFr 20,000) (Cat No. C24-33var) (Image)

Est.$7,500