Help recognizing RPM

Discussion in 'Error Coins' started by Michael Sobczyk, Jan 17, 2020.

  1. Michael Sobczyk

    Michael Sobczyk New Member

    Have a few 1964 Washington Quarters l have taken a look at through usb microscope but I’m still new to this I don’t know if these are RPM or just machine issues.

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  3. Treashunt

    Treashunt The Other Frank

    #1: no
    #2: Possibly
    #3: no
  4. Danomite

    Danomite What do you say uh-huh Supporter

    What you’re seeing is MD with a touch of DDD. No RPM’s.
  5. cpm9ball

    cpm9ball CANNOT RE-MEMBER

    I don't think any are RPM's. ~ Chris
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