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1999-S Delaware Proof

Twenty Cent Pieces & Quarter Dollars · Washington Quarters (Statehood & Territories) · 1999–2009
Regular Proof
Weight5.67 g
Diameter24.3 mm
MintSan Francisco
StrikeProof
Mintage 3,713,359 Clad proof; same mintage for all 1999 state designs
EdgeReeded
Alignment↑↓ Coin
CompositionCopper-Nickel Clad (75% Cu, 25% Ni bonded to pure Cu core)
DesignerJohn Flanagan (obverse)
Collector's Key IDCK-2993

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About this coinHistory

Delaware kicked off the 50 State Quarters program in January 1999, and the San Francisco Mint's proof version of the coin set the visual template for the entire decade-long series. William Cousins' reverse depicts Caesar Rodney on horseback, racing through a thunderstorm to cast his Independence vote in Philadelphia on July 1, 1776, and the design's strong central figure makes it one of the more legible proof reverses of the early Statehood run. The 1999 Proof Set, in which this coin shipped, was a nine-coin clad set covering the Lincoln cent, Jefferson nickel, Roosevelt dime, Kennedy half dollar, and all five Statehood quarters, with a reported set mintage of 3,713,359, which means the individual 1999-S Delaware clad proof is itself held to the same figure.

A genuine 1999-S Delaware proof shows the standard San Francisco proof hallmarks: deeply mirrored, watery fields with sharply squared rims and full design definition from a slow, double-struck production process. On Cameo (CAM) and Deep Cameo (DCAM) examples, the frosted finish on Rodney, the horse, and the lettering contrasts hard against those mirror fields; on standard 1999 proofs, that contrast is muted or absent, and the entire surface reads as brilliant. PCGS and NGC assign PR (Proof) grades and stack CAM or DCAM designations on top when contrast is strong. Under a 10x loupe, expect faint die-polish lines in the fields on a true proof, never the cartwheel luster of a business strike. Heavily polished circulation 1999-P Delaware quarters occasionally surface in flips marked "proof-like," but the rim profile is the giveaway: a proper proof shows a knife-edge squared rim, while a business strike rounds off. Specifications match the standard Washington clad quarter at 5.67 grams, 24.3 mm, copper-nickel clad over a pure copper core.

Most collectors acquire this issue inside an intact 1999 Proof Set rather than as a singleton, and that remains the cheapest route in. Loose certified examples in PR68 and PR69 trade for modest premiums, while PR70 DCAM examples command the only meaningful price jump because of how strict the top-pop population is. As an entry-tier Statehood proof tied to the inaugural Delaware design, it is a logical first acquisition for anyone building a 50-state proof type set. For the wider program arc, see the 50 State Quarters series history.

Price guideReference

Reference data only — not an appraisal.

GradeDescriptionLowHigh
PR-63 Proof (PR)
Frequently Asked QuestionsFAQ
How many 1999-S Delaware Proof Washington Quarters (Statehood & Territories) were minted?
3,713,359 were struck (Clad proof; same mintage for all 1999 state designs).
What is a 1999-S Delaware Proof Washington Quarter (Statehood & Territories) made of?
Copper-Nickel Clad (75% Cu, 25% Ni bonded to pure Cu core), weighing 5.67 g.
What is the melt value of a 1999-S Delaware Proof Washington Quarter (Statehood & Territories)?
Its melt value is its metal content multiplied by the current spot price. See our melt calculator on the metals pages for a live figure.
Is the 1999-S Delaware Proof Washington Quarter (Statehood & Territories) a key date?
It's a more common date overall, though scarcer die varieties may carry a premium — see the varieties list.