This is a 2020 S US Mint Proof Set 11 Coins W Extra Nickel w COA.  Plastic packaging has never been opened and extra nickel is in sealed plastic bag (never opened)

Guaranteed 2020 U.S. Mint Silver Proof Set with Reverse Proof Jefferson Nickel has original mint packaging including outer box, sealed reverse proof nickel, certificate of authenticity and nickel envelope.

The 2020 United States Mint Proof Set® contains 10 proof coins, each bearing the “S” mint mark of the United States Mint at San Francisco.

New in 2020! Premium Coin: The 2020 United States Mint Proof Set® is accompanied by a special 2020 Jefferson nickel with a proof finish struck at the West Point Mint with a “W” mint mark. This special complimentary coin is packaged separately in clear United States Mint plastic wrap and inserted into an envelope.

The set is accompanied by a Certificate of Authenticity.

Item is in fantastic condition I bought this item back in November 2020 As a gift for myself. Now it time for you to enjoy and own this Covid era mint set .