1999-P State Quarter. Delaware. Struck on an Experimental Planchet.

1999-P State Quarter. Delaware. Struck on an Experimental Planchet. MS-68 (NGC). Vivid brassy-gold surfaces are fully struck with intense satin luster. Although the Sacagawea dollar was first issued in early 2000, the manganese alloy in its planchets was developed during 1999 and tested using State quarter dies, which were similar in diameter. For each of the five 1999-dated State quarter types, a small number of examples were struck at the Philadelphia Mint in a manganese alloy, as here. These pieces are technically patterns, but they are not listed in the tenth edition of the Judd reference and are designated as "Mint Errors" by PCGS. Provenance: From our November 2020 Auction, lot 8433. Click here for certification details from NGC.

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