USA - Wheat Cent 1956 on Silver Dime ERROR

1956 American wheat Cent struck on US silver dime planchett! Very lightly struck due to the designed size difference; also off-center for the same reason. I'll have more to add when I research the relative rarity of this particular US error.
This coin harkens back to a tradition begun in ancient Rome and carried through to modern times - a 'penny' coin struck in SILVER. US catalog of errors rates Rarity at IV. I sent this in to NGC for authentication and it came back as an authentic error and graded it MS 62, I had estimated it as an XF+. Who am I to argue?