2021-W Silver Eagle Proof is the. Time the US Mint will strike a Silver Eagle Proof with John Mercantis original Heraldic Eagle reverse design. Each label features the First Day of Issue designation, Congratulations Set designation, and T-1 designation indicating this coin features the original Heraldic Eagle reverse and the hand-signed signature of the 12. Firsts and Lasts are ALWAYS sought after by collectors! Especially for the most collected coin series in US Mint history.Anniversary of the American Silver Eagle program and an absolute must-have for Silver Eagle collectors around the world. The item "2021-W $1 1-OZ SILVER EAGLE PROOF T-1 CONGRATULATIONS SET LAST YEAR OF ISSUE" is in sale since Tuesday, March 23, 2021. This item is in the category "Coins & Paper Money\Bullion\Silver\Coins". The seller is "premierrarecoins" and is located in West Palm Beach, Florida. This item can be shipped worldwide.