1876 20C PR63 PCGS, BF-4, the second example identified !
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1876 20C PR63 PCGS, BF-4, the second example identified ! According to John Frost, the author and webmaster for the doubledimes.com website, the BF-4 was speculated to exist as a proof and this year two examples have been identified and this is the second one. From The Allan H. Goldman Collection.