Note that the 2020 P&D George HW Bush coins were not minted for US mint sets (and there are also NO George HW Bush Proofs) and therefore those two coins are directly from US Mint rolls. The 39 coin proof Presidential Dollar Coins included in this set are in original untouched mint lenses (though without any of the boxes or certificates of authenticity). This set includes all of the regularly issued Presidential Dollar proof coins.
Please note there was no George HW Bush Proof coin minted. The Presidential Dollar coin series is complete with 40 presidential designs issued Washington through Ford + Reagan + George HW Bush. Note there is NO Carter coin nor are there plans to mint one as former President Carter is still with us. Although this is a modern series some of the mintages are quite low given the limited distribution.