A spiral of history :    a carved tusk from the Loango Coast, Congo 

 - Washington, D.C.:    National Museum of African Art,    1998. 
 - v. :    ill. ;    23 cm. 
<br/><br/><label>Subjects--Topical Terms: </label><br/> History -- Congo.
<br/><br/><label>Dewey Class. No.: </label>900.6751