Watch List notes:

GB/USA a 2-coin set in gold comprising GB Twenty Five Pounds 2020 400th Anniversary of the Sailing of the Mayflower Gold Quarter Ounce Gold Proof FDC, and USA Ten Dollars 2020 Plymouth 400th Anniversary Gold Quarter Ounce Proof FDC in the Royal Mint/USA Mint box of issue with certificate and booklet detailing the voyage and first years of the new colony and settlement, only 500 sets have been issued

Estimate: 700-1000 GBP