A circulated 1999-D Delaware quarter is worth face value. In uncirculated condition, most Mint State coins retail for under $7, MS67 pieces trade for $10–$50, and PCGS notes that coins grading MS67 or finer are genuinely scarce despite the huge mintage — so a well-preserved, mark-free example is the smart buy for a set. Denver's output of 401,424,000 was the larger of the two circulation mintages for the first state quarter.
To confirm what you have, check the obverse: the mint mark sits just right of Washington's ponytail, and a "D" means Denver. The reverse shows Caesar Rodney on horseback — his 1776 ride from Dover to Philadelphia to cast a tie-breaking vote for independence — with the caption "THE FIRST STATE." An "S" coin is a San Francisco proof; 90% silver 1999-S proof versions exist too.
Delaware opened the 50 State Quarters program in January 1999, honoring the first state to ratify the Constitution. We inspect and grade every coin before it ships. See the 1999-P Delaware quarter — home of the Spitting Horse die crack — or shop the complete run of state quarters.
Values: PCGS CoinFacts and CoinWeek.
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