As incredible as it seems, two Standing Liberty Quarters struck on U.S. Cent planchets have been recently authenticated and certified by NGC. This extremely rare U.S. off-metal is valued at six-figures. This exciting mint error was in my person collection and has been authenticated and certified by NGC and BYERS COLLECTION is noted on the insert. Mint Error News featured the other coin in Issue 30 of the magazine.
NGC began certifying a few major mint errors from Mike Byers' personal collection. These spectacular and rare coins each have "BYERS COLLECTION" designated on the NGC insert.
1874 G$1 Mirror
Brockage on Obverse
NGC MS 62