The Botswana National Museum turns 40

In 2008 the postal authority of Botswana issued a set of 5 stamps to commemorate the 40th anniversary of their national museum and art gallery.
 
The museum was established by an act of parliament  in 1967 and is located in the Botswanan capital of Gaborone.  For the 40th anniversary the museum mirrored the International Council of Museums banner of "Museum as Agents of Social Change and Development"