Obverse
George Washington portrait adapted from John Flanagan's original design.
WORLD COINS · UNITED STATES · 1998 PROOF
1998-S Washington Quarter Proof
San Francisco Mint · Washington Quarter · Standard Clad Set
01 IDENTITY
Coin Identity
CountryUnited States
Denomination25 Cents
Year1998
Mint MarkS
MintUnited States Mint · San Francisco
FinishStandard Clad Proof
Parent Product1998-S U.S. Standard Proof Set
02 PHYSICAL PROFILE
Physical Specifications
CompositionCopper-nickel clad over pure copper core (91.67% copper, 8.33% nickel overall)
Weight5.67 g
Diameter24.26 mm
Thickness1.75 mm
EdgeReeded
OrientationCoin alignment ↑↓
ShapeRound
03 DESIGN & CONTEXT
Design
Reverse
Heraldic eagle in the pre-1999 Washington quarter design by John Flanagan.
1998 was the last annual regular proof set featuring the traditional heraldic eagle Washington quarter before the 1999 State Quarters program. This coin is copper-nickel clad, not the separate silver proof issue.
04 ISSUE & MINTAGE
Issue Information
Issue Year1998
Mint MarkS
FinishCollector Proof
Reported Standard Clad Set Quantity2,086,507 sets (secondary catalogues)
Individual Proof Coin MintageNot independently asserted for this set
The reported set quantity (2,086,507) is a secondary collector-catalogue figure, not the U.S. Mint July 1998 sales cap (2,100,000). Set quantity must not be treated as the audited output of every 1998-S denomination; silver proof products were also offered.
05 COLLECTION RECORD
Archive Information
Archive IDUS-1998-S-25C-CLAD-PROOF
QR Short Codeusps98q
QR Short URLhttps://metacoinart.com/q/usps98q
Parent Proof Set1998 United States Proof Set
Canonical URLhttps://www.metacoinart.com/world-coins/united-states/proof-set/1998/quarter/
06 SOURCES & REFERENCES
References
OFFICIAL SOURCE
United States Mint · 1998 Five-Coin Proof Set
Contemporary July 1998 notice about the five-coin proof program and its 2.1-million sales cap (not a final production figure).
Open reference ↗OFFICIAL SOURCE
United States Mint · Coin Specifications
Official denomination specifications; historical 1998 metal profiles distinguished from later changes.
Open reference ↗OFFICIAL SOURCE
United States Mint · December 1998 Announcement
Contemporary notice that the 1998 annual proof sets were no longer available from the Mint.
Open reference ↗SECONDARY REFERENCE
Proof Set Guide · 1998 Standard Proof Set
Historical collector-set total of 2,086,507 and original issue price of $12.50.
Open reference ↗SECONDARY CATALOGUE
Numista · Washington Quarter Type
Secondary catalogue cross-check only; no images, pricing tables or descriptions reproduced.
Open reference ↗