Could use a simple answer to a dumb question...

Discussion in 'Error Coins' started by tammiGee, Jan 8, 2019.

  1. tammiGee

    tammiGee Active Member

    I'll make this short. What is the concurrence on cleaning a coin slightly to be able to clearly view the mint mark for RPM, OVM etc.? Is there a proven method for for being able to see and photograph an RPM that is surrounded by dirt and human gunk?
     
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  3. desertgem

    desertgem Senior Errer Collecktor Supporter

    Approved or not, if the coin is circulated, I submerge it is a glass petri plate or shallow glassware with a covering of acetone. Then I let it soak for 15-20 minutes , you can cover the top, and then use the brush to gently swirl the acetone over the coin and remove the surface gunk. it can be repeated if the gunk is heavy, but try to limit the brush to the areas you need to see, I would not use this on a MS or Proof. Such coins have been through the larger TPG s with no rejection. JIM
     
  4. tammiGee

    tammiGee Active Member

    OK thx Jim....is it a chemical grade acetone I use or polish remover
     
  5. tammiGee

    tammiGee Active Member

    No not on the PF's I can see those RPM's clearly just not affordable to regrade those
     
  6. paddyman98

    paddyman98 I'm a professional expert in specializing! Supporter

    Chemical grade.. never nail polish remover
     
    Burton Strauss III likes this.
  7. tammiGee

    tammiGee Active Member

    a Home Depot thing or a specialty place? acetone Hey man I Found one of those BIBIOh errors like that Hardy index talked about. A chip between every letter. The number looks like it's gonna be about 12-15 digits long!
     
  8. Collecting Nut

    Collecting Nut Borderline Hoarder

    Your local hardware store has the commercial grade. If you want to ruin your coin then nail polish remover will do just that.
     
  9. tammiGee

    tammiGee Active Member

    Alright never used the acetone b4 so thanks for the info. Should the coins take a lengthy bath? Or a short one then rinse with H20...
     
  10. Collecting Nut

    Collecting Nut Borderline Hoarder

    It depends on the type and amount of grid and or dirt. Start small.
     
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