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Old 02-15-2018, 06:08 PM
  #6  
JJBlaine
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Join Date: Jun 2017
Location: California
Posts: 441
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I use a soft toothbrush to rub a 50/50 mix of water and rubbing alcohol, with a couple of drops of Dawn dish detergent. It has always worked for me, even the most stubborn pencil marks. Good luck!
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