Just what are lint marks?

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Rockhound
Rockhound Posts: 33
in U.S. Coin Forum
I am reading up in PCGS book on grading and they mention lint marks in their descriptions of some proof coins, but they don't mention these marks in the section describing the different types of defects I.E. bag marks, cabinet friction etc. What are they and how do the get on proof coins?
Whatever you do, have a good time doing it.

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  • relayer
    relayer Posts: 10,570 ✭
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    Link marks come from small pieces of thread from the cloth used to polish the die.

    The thread gets stuck on the die and makes a small impression on the coin when it's struck, that well, looks like a piece of thread.

    I don't know why they are more common on proofs (other than being double struck) then on business strikes.


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  • XpipedreamR
    XpipedreamR Posts: 8,059 ✭✭
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    Do they polish proof dies the same way as business strikes, I wonder?
  • kranky
    kranky Posts: 8,709 ✭✭✭
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    Just to add a bit to relayer's explanation, all the lint marks I've seen on proof coins have been very small (i.e. a very short piece of thread).

    New collectors, please educate yourself before spending money on coins; there are people who believe that using numismatic knowledge to rip the naïve is what this hobby is all about.

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