2000-W 22kt Gold Proof

The 2000-W 22kt Gold is the strangest single issue in the Sacagawea series and one of the strangest in modern U.S. coinage. West Point struck 39,287 dollar coins in solid 22-karat gold (.9167 fine), not in the manganese-brass clad composition used everywhere else in the series, as part of a Mint test program tied to the launch of the new dollar. The coins were never officially released to collectors. Twelve specimens were given to obverse designer Glenna Goodacre as a gesture; the balance went into Mint storage. After the program was cancelled, the bullion was retained at Fort Knox rather than melted in full, and roughly 27,000 pieces remain in government custody. The handful that escaped the storage vault, primarily through Goodacre's distribution and a Cheerios-era PCGS authentication of one of her pieces, are the only legally tradable 2000-W gold dollars in private hands.

Authentication is unusually clean for an issue this rare, because the diagnostic is the metal itself. A genuine 2000-W weighs noticeably more than the 8.1 gram clad standard once the gold composition is accounted for, the surfaces show a deeper saturated yellow than the orange-tinted manganese brass, and the W mintmark is sharply rendered on every example. PCGS and NGC slab Goodacre's distributed pieces with full pedigree documentation, and the chain of custody from Goodacre to the auction floor is part of how the market accepts the issue. No counterfeits in solid 22-karat gold have surfaced in the public record; the metal cost alone makes the forgery economics unfavorable.

This is a non-circulating, non-bullion, non-commemorative pattern in everything but name, and the survival population in private hands is so small that auction appearances are infrequent enough to make a market rather than to track one. Realized prices have ranged from the high five figures into the low six figures depending on the specimen and the moment. The site classifies the entry under the regular badge per the proof-rarity rule, with rarity context held in the prose. For the broader program context, see the Sacagawea Dollar series history.