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  1. BadThad
    Post

    Nice 14-D

    Hard to judge from the pictures, but there looks to be a little rub on the cheek, beard and forehead....based on the pics, AU55-58. This coin...
    Post by: BadThad, Feb 10, 2009 in forum: US Coins Forum
  2. BadThad
    Post

    Experiment with Verdigone (tm) on copper cents

    I've never experienced that, but I only use ACS, reagent grade acetone. I only use acetone for drying, I prefer xylene for removing surface...
    Post by: BadThad, Feb 10, 2009 in forum: US Coins Forum
  3. BadThad
    Post

    Experiment with Verdigone (tm) on copper cents

    Yes, but lab time is seriously in short supply for me. It's on my wish list!
    Post by: BadThad, Feb 10, 2009 in forum: US Coins Forum
  4. BadThad
    Post

    Grade a Lincoln please.

    MS-64RB, but a TPG could easily take this down to MS-63RB.
    Post by: BadThad, Feb 10, 2009 in forum: US Coins Forum
  5. BadThad
    Post

    Experiment with Verdigone (tm) on copper cents

    Thanks for the welcome! 1) Do not heat VERDI-GONE™. Doing so will degrade the active ingredient and reduce effectiveness. Use at room...
    Post by: BadThad, Feb 10, 2009 in forum: US Coins Forum
  6. BadThad
    Post

    Experiment with Verdigone (tm) on copper cents

    Hello! First off, Jim, thank you for perfoming this test. Being a scientist, I really enjoy seeing VERDI-GONE™ customers doing experiments such...
    Post by: BadThad, Feb 9, 2009 in forum: US Coins Forum
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