Jim D. writes: About 15 years ago I was going through a bag of new nickels. I found three coins that were nickels struck on the penny blanks. These were perfectly struck but are smaller than a normal nickel coin. Any idea what these are worth?
Yes, those are fairly scarce errors. Cent planchets got mixed with the nickel blanks creating a nickel struck on a cent (a 6 cent piece?). Often the outer design of the nickel will be missing as the blank is too small for the die. Usually the flan (planchet) is thin as it stretches out to attempt to fill the collar to compensate. Approximate Value Range: $60-$100 each.