2018 Variety WMHR-001

Description

Cataloged by the Wexler Team, this 2018-P Block Island National Park Quarter exhibits master die doubling on the reverse — a form of hub doubling that originates at the master hub stage rather than the working die level. Cross-referenced as Wexler Variety ID 2018-P 25-cent RI WMHR-001. Because this doubling is on the master hub, it should be visible on all 2018-P Block Island quarters to varying degrees. Differences in appearance result from cumulative wear across the production chain: master hub wear, master die wear, working hub wear, working die wear, and coin wear each attenuate the doubling. This design area is also commonly affected by die deterioration doubling, requiring careful distinction. Struck in copper-nickel clad at 5.67 grams and 24.26 mm, the Block Island quarter depicts a snowy owl in flight over the Rhode Island wildlife refuge's rocky coastline.

Attribution History

• Discovered by George W. Powell, Jr. Cross References: None known Comments: Because this doubling is on the master hub, it should be visible on all 2018-P Block Island quarters. Differences in the appearance of the doubling will result from master hub wear, master die wear, working hub wear, working die wear, as well as coin wear. This area of the design is also commonly affected by die deterioration doubling.
• None known Comments: Because this doubling is on the master hub, it should be visible on all 2018-P Block Island quarters. Differences in the appearance of the doubling will result from master hub wear, master die wear, working hub wear, working die wear, as well as coin wear. This area of the design is also commonly affected by die deterioration doubling.; Wexler Variety ID: 2018-P 25¢ RI WMHR-001
• Expert attribution by Wexler Team

External References