Click to expand Tap to zoom 1991-W Proof 1 Oz American Gold Eagle $50 Coin w/Box & COA $3,762.00 1 2 3 4 5 6 7 8 9 10+ Quantity Quantity Add to cart 1991-W Proof 1 Oz American Gold Eagle $50 Coin with original Box and COA. Roman numeral date--see photos.