PO Box 1993, Bloomington, IL 61702-1993
309 662-0159
The large coils of metal used to make the planchets are all the same weith but different thickness. If the mint employee does not look carefully, they can place a roll of dime stock into the blanking press to make quarter blanks. This is call quarter struck on dime stock.
In 1970, the Denver Mint struck almost a complete roll of dime stock as quarters. These are dated 1970 D. This error is very common for 1970 and does not care a large premium because so many were struck.
Other years, the mints has discovered their mistake and not very many coins struck on the wrong stock were released to the public. Coins for these years do command a premium, but not several hundred or thousands of dollars.
When a coin is struck on the wrong planchet, this means coin was struck on the blank (planchet) that was made for another denomination. Some examples would be a dime planchet struck with cent dies. A nickel planchet struck with quarter dies or a dime planchet struck with quarter dies.
Coins struck on the wrong planchet are rare and demand a higher premium.
The bins that are used to transport the planchets from the blanking machine to the coinage press has seams inside the bin. Sometimes a planchet will stick in the seam and not be release when the bin is emptied. Then the bin is filled with another denomination planchets but this time when the bin is emptied, all the planchet are released from the bin.
Thus a dime planchet can be emptied into the quarter coinage press with thousands of quarter planchets.
Many collectors are confused about the difference between Wrong Planchet and Wrong Metal (Stock) errors.
This Lincoln cent was graded by PCGS as MS 67 and is a beautiful example of a cent struck on a dime planchet.
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| Broadstruck | Clips |
| Die Clash | Die Cap |
| Double Denomination | Double Struck |
| Flip Over | Multi Struck |
| Mated Pair | Off Center Struck |
| Wrong Planchet |
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