1920 Pilgrim Tercentenary Half Dollar Commemorative 50c PCGS MS63. 1920 Pilgrim Tercentenary Commemorative Half Dollar, graded MS63 by PCGS. This classic early commemorative features Governor William Bradford on the obverse and the Mayflower on the reverse, struck to mark the 300th anniversary of the Pilgrims’ landing at Plymouth. Denomination: 50 cents. Mint: Philadelphia (no mint mark). Grade: MS63 (PCGS certified). Brilliant, lustrous surfaces with sharp detail. A beautiful mid-grade example of this historic issue, highly collectible among U. 1920 Pilgrim half dollar, William Bradford commemorative 50c, Mayflower coin, PCGS MS63 commemorative half, early US commemorative silver coin, Plymouth Tercentenary half dollar, vintage silver half 1920, collectible US coins, PCGS graded half dollar, Pilgrim Tercentenary MS63, 1920 silver half dollar, numismatic silver coin, historic US commemorative coin. Commemorative half dollar, Pilgrim 1920, PCGS MS63, Mayflower coin, William Bradford, Plymouth coin, early US commemoratives, 1920 silver half, PCGS certified, collectible half dollar, vintage US coin, Tercentenary half dollar, silver 50c, numismatic silver, investment coin.