6 STAMPS :
MARINER 9 30 May 1971. Launch at Kennedy Space Center.
MARS 3 28 May 1971. Mars Orbiter/Lander - Probe of 4650 Kg firing of Baikonour, french experiment with STEREO.
MARINER 4 27 Nov. 1964 (Start) Attempted Mars Flyby.
PLANET B 3 Jul 1998 Japanese Mars probe for Mars Orbiter - (Nozomi) - 450 Kg .
MARS EXPRESS LANDER FUTURE Carried on the Mars Express Nasa-Esa Mission, Lander BEAGLE 2 built in England.
MARS ESPRESS 2003 - FUTURE Cooperation Esa-Nasa, returning on Earth samples of the Mars ground using on board BEAGLE recoverable ground drones.
On the frame of sheetlet 2 :
VIKING 1/2 20 Aug 1975 and 9 Sep 1975
Mars Orbiter and Lander on Mars surface.
Mars Orbiter and Lander.