Sierra Leone Scott 1169-1171A Mint never hinged.

Description

175Le Kepler, 175Le Galileo, 175Le Drawings by Huygens in 1672 and Schiaparelli in 1886, 175Le Sir Herschel, 175Le Lowell in Arizona, 175Le Mars, 175Le Mariner 4, 175Le Mars 2 and 175Le Mars 3 Sheet of nine and 175Le Mariner 9, 175Le Mariner 9 and Phobos, 175Le Cydonia Region, 175Le South Polar Cap, 175Le Profile of Mars, 175Le Polar Cap, 175Le Nix Olympica 175Le Grand Canyon of Mars and 175Le North Pole Sheer of nine and 175Le Olympus Mons, 175Le Viking 1, 175Le Viking 2 Releases Lander, 175Le Lander Entering Mars?s Atmosphere, 175Le Parachute Deployed, 175Le Terminal Descent, 175Le Viking Lander on Mars, 175Le Soil Sampler with Robotic Arm and 175Le Soil Sampler and Flag Sheet of nine and 175Le Martian Dusk, 175Le Project Deimos, 175Le Exploration of Mars with Astronauts Surveying Land, 175Le Return to Rombus, 175Le United States Rocket Bound for Mars, 175Le Spacecraft Bound for Mars, 175Le Spacecraft in Martian Orbit, 175Le Mission to Mars with Astronauts Weightless in Spacecraft and 175Le Space Station Shuttle Sheets of nine and 150Le Face on Mars and 150Le Space Station Souvenir Sheets Exploration of Mars.