1999 (S) Proof Pennsylvania State Quarter - Doubled Die Obverse WDDO-001

Description

Attributed by the Wexler Team, this clad proof 1999-S Pennsylvania State Quarter is a Class IV doubled die obverse with spread to the ESE on LIBERTY, USA, QUARTER DOLLAR, and light doubling on IN GOD WE TRUST and the S mintmark. The hub was tilted during die production, resulting in the strongest spread appearing on the left side of the obverse and decreasing as you move from left to right. Cross-referenced as CONECA 1-O-IV+VIII. The variety submitted for attribution was struck on a clad proof planchet, a notable detail for planchet composition specialists. No significant obverse or reverse die markers have been noted. The Class IV Offset Hub combined with Class VIII Tilted Hub doubling creates a distinctive spread pattern where the displacement is directional rather than uniform, concentrating the strongest doubling on LIBERTY at the obverse's left edge. The 1999-S Pennsylvania Quarter is the San Francisco proof of the second State Quarter design, and WDDO-001 is cataloged for this date and mint.

Cross References

• CONECA: 1-O-IV+VIII Comments: The variety submitted was struck on a clad proof planchet.; Wexler Variety ID: 1999-S 25¢ Pr PA WDDO-001

External References