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 personal collection and has been authenticated and certified by NGC and BYERS COLLECTION is noted on the insert.
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