1900 (ca), engraved De La Rue die proof (Kaiser Wilhelm), card mounted, v.f. (Image)

Est.US$250

1912 Gotha, 10pf violet blue, l.h., v.f. (Cat No. Mi.5) (Image)

Est.US$150

1912 Gotha, 10pf violet blue, n.h., fine, cat. €800 (Cat No. Mi.5) (Image)

Cat. €800, Est.US$200

1912 1m on 10pf "Gelber Hund", two singles on card to Mainz, also overprinted "Gelber Huna", two singles on separate cards, some creases, otherwise fine-v.f., cat. $1050 (Cat No. CL4,4b) (Image)

Cat. $1050, Est.US$250

1931 South America Flight Issue, 2m and 4m, used in combination with unoverprinted 2m and 4m on covers to USA, with Dornier DOX cachets, fine-v.f., with appropriate markings, one with filing fold away from the stamps, fine-v.f. (Cat No. C38-39) (Image)

Est.US$250

1931 Polar Flight cover addressed to Hermann Sieger, franked with 1M horizontal pair, canceled on board, with appropriate cachet and Friedrichshafen arrival pmk on back, v.f. (Cat No. C40) (Image)

Est.US$250

1931 Polar Flight cover addressed to Zurich, franked with 4M canceled on board, with Icebreaker Malyguin 27.7.31 postmark alongside, v.f. (Cat No. C42) (Image)

Est.US$250

1933 Chicago Flight, cacheted (printed) cover to Dallas, franked with 4M tied by Friedrichshafen cds, triangular handstamp and green arrival pmk on back, fine-v.f. (Cat No. C45) (Image)

Est.US$150

1965 Central Courier stamp, used, v.f., with 2001 Weigelt certificate, cat. €350 (Cat No. Mi.D2) (Image)

Cat. €350, Est.US$150