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Printable version; In other projects ... Pages in category "Mint-made errors" ... 0–9. 1955 doubled die cent; 2000 Sacagawea dollar – Washington quarter mule; B.
Due to improvements in production and inspection, modern errors are more rare and this impacts value. [3] Some types of errors, such as clipped planchets, edge strikes, and foreign object strike-throughs can be faked. Many errors are sold ungraded because of their relatively low value and the relative cost of grading.
The over mint mark is created when a one date and mint mark is punched over another date, part of a date, or mint mark. These coins are generally restricted to the early minting process of coins dating before the turn of the century. The DDO and DDR errors are related to any part of the coin that shows a distinct doubling.
The following mint marks indicate which mint the coin was made at: P ... Extra leaf errors are known. [3] [4] S ... Commons Attribution-ShareAlike 4.0 ...
The following mint marks indicate which mint the coin was made at (parentheses indicate a lack of a mint mark): P = Philadelphia Mint. D = Denver Mint. S = San Francisco Mint. W = West Point Mint. O = New Orleans Mint. CC = Carson City Mint
Brockages are relatively rare among modern coins of industrialised countries where mints exercise a strict production control and somewhat less rare among the modern coins of some developing countries which operate their own mint (e.g. Nepal); in good condition, coins with clear brockage are a collector's item and can sell for substantial ...
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In 1986 The Annual Report of the Director of the Mint for financial year 1986, states that the mint had been experimenting with a new single-squeeze hubbing system. In the year 1996, the mint announced at the opening of the Denver Mint's die shop that the cent, nickel, and dime dies would be made from this process. It took until 1999 to include ...