How does one tell the difference between a clipped planchet and post mint damage? I remember a commercial where they were selling scissors and they cut off part of a penny and was wondering how someone can tell that from a real clip.
A clip is a coin that the blank was cut over stock that was previously was cut. The stock looks like this when the blanks are cut out. Here is what a stock piece that was normal looked like when the material was cut. If a stock piece was put in the machine wrong, then it was removed and the material was re-started. Any previous blanks cut out would leave parts of the stock missing. When the material was missing, an incomplete blank is formed. After running through the set up mill, the areas with the clipped area would form a very weak rim 180 degrees opposite of where the clip was situated. This area if distorted are call a "Blakesley effect". When the presses strike the coin, the area where the material is missing (clipped) area would leave the devices partially formed. The design/devices would weaken toward the clip. Here are a few examples of clips. Single Clip https://www.coincommunity.com/forum...0Clipped.jpg
Note the area around the clipped area. Note how the design fades in this area. Watch for the "Blakesley Effect." It may be on both or one area opposite the clipped area/areas.
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