https://forums.collectors.com/ Tue, 23 Jun 2026 19:59:42 +0000 en stamped — Collectors Universe https://forums.collectors.com/discussion/1123711/2016-d-penny-stamped-under-another-penny Thu, 18 Jun 2026 17:17:45 +0000 U.S. Coin Forum Mulholb1 1123711@/discussions Is this ring caused at mint? It’s the exact curvature of a penny.

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