
The S mint mark carries the lowest mintage per year/mint. For example, the mintage for your 1969-S is 544,375,000, compared to the 1969-P, 1,136,910,000, and the 1969-D, 4,002,832,200. Your 1972-S mintage is 376,939,108, compared to the 1969-P, 2,933,255,000,and the 1972-D, 2,665,071,400.