That happens to be 1955-S (~46 million) and 2009(4)-P (~129 million) respectively (In case you wonder: the 2009 coin was given to me by my uncle (who presumably found it in circulation) when he visited me in early December 2009*; as for the 1955 coin, the high-grade version was a gift from a fellow CCF member, but I previously received a XF example from my non-collector friends that was likely als