I don't remember what year I ordered them but the last set (as I ordered both the Philadelphia and Denver mints) I received was for the 25th President. William McKinley. I have never received any more. I really would like to receive the remaining sets. If that is not possible I would at least like a refund. I'm actually annoyed that a refund was not automatic, especially if they were discontinued. I am owed for 19 sets. Obama was the last president that was to be included in these sets.