2012-S El Yunque, Silver, Limited Edition Proof Set Proof

The 2012-S El Yunque from the Silver Limited Edition Proof Set is the same coin, struck on the same dies, on the same 90% silver, 10% copper planchet at 6.25 grams and 24.26 millimeters, as the standard 2012-S El Yunque silver proof. The catalog tracks it as a separate entry because the U.S. Mint sold it inside a different product: the 2012 Limited Edition Silver Proof Set, a seven-coin package built around an American Silver Eagle dollar plus the year's silver Kennedy half dollar, silver Roosevelt dime, and the five ATB silver quarters. The 509,637 figure is the year's total silver-proof distribution and the production anchor for every 2012 silver entry. Gary Whitley's reverse, with its coqui frog perched on a forest leaf and Puerto Rican parrot in flight above, is identical to what shipped inside the standard set.

Authentication on the issue runs two parallel tracks. The first is silver verification: 6.25 grams against 5.67 grams for clad, a half-gram spread any precision scale resolves cleanly, and a reeded edge that reads solid silver without the reddish copper-core line a clad strike shows at an angle. PCGS, the Professional Coin Grading Service, and NGC, the Numismatic Guaranty Company, label the slab insert with Silver alongside the proof designation, and Deep Cameo (DCAM, the higher-contrast tier above the moderate Cameo or CAM) is the default outcome on the issue. The second track is set verification: the Limited Edition packaging, with its black lacquer case and accompanying certificate of authenticity, distinguishes the product context from the standard cardboard-and-plastic Silver Proof Set even though the quarter inside is mechanically the same coin.

Collector demand sorts the issue against the regular 2012-S El Yunque silver proof rather than against the year's clad mintage. Limited Edition Set sales ran in the 50,000 to 75,000 range across 2012, well below the 509,637 silver-proof anchor, so the value premium attaches to original Limited Edition packaging and set completeness rather than to the coin itself. Slabbed examples without the original case trade at the standard 2012-S silver proof level for PR69-DCAM and PR70-DCAM grades. For the broader story of the ATB Silver Proof program, the 2012-2013 Limited Edition Set, and the series' production arc, see the Washington ATB series history.