NORTH KOREA (1980) Nunez*. Orellano*. Hillary*. Battuta*. Set of 4 overprinted SPECIMEN. KSC Nos 1940-3. Scott Nos 1917-20.
$20
NORTH KOREA (1980) Explorers of the Earth. Set of 4 specimens + S/S. Scott Nos 1917-21, KSC Nos 1940-4.
$25
NORTH KOREA (1980) Explorers of the sea. Set of 4 specimens + S/S. Scott Nos 1933-7, KSC Nos 1959-63.
$25
NORTH KOREA (1980) Magellan*. Nansen*. Piccard*. Cousteau*. Set of 4 overprinted SPECIMEN. KSC Nos 1959-62. Scott Nos 1933-6.
$20
NORTH KOREA (1980) Wrights*. Bleriot*. Campini*. Zeppelin*. Set of 4 overprinted SPECIMEN. KSC Nos 1971-4. Scott No 1944-7.
$20
NORTH KOREA (1980) Explorers of sky and space. Set of 4 specimens + S/S. Scott Nos 1944-8, KSC Nos 1971-5.
$25
NORTH KOREA (1980) Explorers of the universe. Set of 4 specimens + S/S. Scott Nos 1949-53, KSC Nos 1977-81..
$25
NORTH KOREA (1987) Cartier*. Sailing ship*. Icebreaker*. Specimen pair overprinted SPECIMEN. KSC No 2720. Scott No 2664.
$20
NORTH KOREA (1989) Magellan*. Stamp overprinted SPECIMEN. KSC No 2947. Scott No 2882.
$7
NORTH KOREA (1989) Magellan. Descrobex 89 exhibition. Specimen. Scott No 2882, KSC No 2947.