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X-Rays Reveal a Hidden Spanish Dollar Beneath the 1776 Continental Dollar

US Coins CoinWeek - October 27, 2026

A $1.3 Million Continental Dollar Had a Secret. Science Found It. New Whitman book by Robert L. Rodriguez uses cutting-edge science, experimental minting, and historical...

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X-Rays Reveal a Hidden Spanish Dollar Beneath the 1776 Continental Dollar

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