The 1974 stamp seen here commemorates an historic meeting between these 2 world leaders in Cuba
Mount Rushmore National Memorial is a sculpture 
carved into the granite face of Mount ... As Six Grandfathers, the mountain was 
part of the route that Lakota leader... [DOC] [TLE] Obama Meets Ral Castro, Making History - The New York Times [PAR] Apr 11, 2015 ...