The Rhim gazelle (aka Slender-horned gazelle aka Sand gazelle aka Gazella leptoceros) is a nomadic antelope found in isolated pockets across the central Sahara Desert. They are well adapted to desert conditions, and can obtain almost all of their necessary water from the dew on the plants they eat. There may be only 300 to 600 mature individuals left in the wild [SOURCE].
This coin was first issued in 1959 in Aluminum-Bronze (KM1). In 1966, the metal composition was changed to Aluminum-Nickel-Bronze, hence the 'a' is added to the KM number.
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