1999-P State Quarter. Georgia--Struck on an Experimental Planchet--MS-67 (NGC).The companion piece to the Pennsylvania State quarter offered above, this piece is also struck on an olive-gold manganese alloy planchet at a time when the Mint was searching for a suitable alloy for the Sacagawea dollar that was eventually introduced in 2000. Sharply struck and satiny with a few swirls of light haziness in the center of the reverse that represent shallow flaws in the planchet.