5 Covers with Precancelled Centennial stamps used 1967-1977
3c used Oct 8, 1967 (#8 cover), 5c uncancelled (#10 cover), 2x3c uncancelled (#10 cover), 6c used April 15, 1973 (#8 cover) and 2x 5c used April 21, 1977 (#10 cover) all in good condition.
