Conservation Showcase: 1920 25c

Posted on 2/13/2012

A recent example from our conservation laboratory.

NCS Conservation Showcase NCS Conservation Showcase
click to enlarge click to enlarge
NCS Conservation Showcase NCS Conservation Showcase

Improper storage can lead to the development of unattractive residues and undesirable toning. This 1920 Standing Liberty Quarter Dollar had developed a mottled uniform brown tone with the addition of some pale greenish residues on the reverse due to many years housed in an improper way.

NCS conservators were able to remove both the residues and the mottled toning to reveal a brilliant coin underneath. This coin was able to grad with standard numeric grading with NGC following conservation work.

Return to the Articles List

  • Global Locations
  • Germany
  • Switzerland
  • Singapore
  • China
  • Hong Kong
  • Taiwan
  • South Korea
  • Global locations map
  • Contact Us
  • NCS
    P.O. Box 4750
    Sarasota, FL 34230
  • 1-866-NCS-COIN toll free
    +1 941-360-3996
    +1 941-360-2559 fax
  • Hong Kong
    Tsim Sha Tsui, Kowloon
    Hong Kong
    +852 2115-3639
  • Switzerland
    Zurich, CHE
    +41 43 816 28 16
  • Germany
    Munich, Germany
    +49 89 255 47 545
  • Numismatic Guaranty Corporation
  • Paper Money Guaranty
  • Comics Guaranty, LLC
  • CCS Paper
  • Collectors' Society
  • Certified Collectibles Group
  • Official Conservation Service of


    © 2015 Numismatic Conservation Services, LLC | Legal Notice and Usage Restrictions | Terms, Conditions and Descriptions | 866-NCS-COIN