BELGIUM (1983) Balloon over city. Ministerial proof. Scott No 1146, Yvert No 2094. Manned flight bicentenary.
AVAILABLE AT $50
BELGIUM (1983) Balloon over countryside. Ministerial proof. Scott No 1147, Yvert No 2095. Manned flight bicentenary.
AVAILABLE AT $50
HUNGARY (1977) History of airships. Photographic proof of set of 7. Scott Nos C385-91.
AVAILABLE AT $40
HUNGARY (1977) Graf Zeppelin over Budapest. Photographic proofs of souvenir sheet. Scott No C392. Michel Blocks 126-7.
AVAILABLE AT $65
HUNGARY (1983) Manned flight bicentennial. Photographic proof of set of 7. Scott Nos C438-44.
AVAILABLE AT $40
HUNGARY (1983) Manned flight bicentennial. Photographic proof of souvenir sheet. Scott No C445.
AVAILABLE AT $40
BHUTAN (1978) LZ-3 zeppelin docking*. Imperforate proof mounted on Format International Card. Scott No 245.
AVAILABLE AT $60
BHUTAN (1978) LZ-11 zeppelin*. Imperforate proof mounted on Format International Card. Scott No 245. This must be the central vignette of the souvenir sheet.
AVAILABLE AT $60