Start a new collection or update yours with Uncirculated Philadelphia “P” and Denver “D” mint mark issues featuring the first ten U.S. Innovation dollar designs. Start with the 2018 coin featuring George Washington’s signature on first U.S. patent and collect through to 2021’s first issue honoring New Hampshire inventor Ralph Baer. He created the first home video game console, shown in a unique split reverse design that features “Handball” on right and an incused field for Player 1 on left... Buy all 20 coins and SAVE!