Preserving Your 1920 Lincoln Cent: Expert Conservation Tips for Toned Coins

Introduction: The Conservationist’s Perspective

As a passionate collector, I’ve witnessed countless valuable pieces lose their luster due to improper cleaning or careless storage. The following guidance will help you preserve your treasures for future generations to appreciate.

Understanding Toning on 1920 Lincoln Cents

The 1920 Lincoln cent presents unique challenges for collectors and conservators alike. When examining coins with unusual coloration, particularly those exhibiting purple and blue hues, it’s crucial to understand the difference between natural toning and artificial treatment. The forum discussion reveals a coin with distinctive coloration that has sparked debate among experienced collectors.

Identifying Artificial Toning

Based on the collective expertise shared in the discussion, the coloration observed on this 1920 Lincoln cent raises immediate red flags. Several experienced collectors noted that “The 20’s have not really toned this color blue/purple” naturally. The presence of fingerprints breaking up the toning pattern is a telltale sign that the coloration is sitting on the surface rather than being a natural result of decades of environmental exposure.

MS70 Controversy

Multiple participants identified the coloration as likely resulting from MS70 application. As one collector stated, “Ms 70 or blue ribbon…. color does not appear natural.” This proprietary coin dip solution is known to produce immediate blue and purple toning, as confirmed by another participant: “In my [limited] experience with MS70, the blue and purple toning is immediate.”

Proper Storage Solutions

Immediate Storage Recommendations

For coins with questionable toning, proper storage becomes even more critical. The forum discussion suggests two primary options:

• Raw album storage (as the original poster mentioned: “It looks awesome in my raw album!”)
• Airtight holders for long-term preservation

The image suggests MS 70 was more than likely used at some point. I would rather see in hand before deciding album or airtite for long term storage.

Avoiding PVC Damage

One of the most critical aspects of coin preservation is avoiding PVC (polyvinyl chloride) damage. PVC-containing holders can leach chemicals that cause irreversible green slime damage to coins. Always use PVC-free holders, flips, and albums for long-term storage.

The Cleaning Dilemma: To Clean or Not to Clean

Professional Consensus on Cleaning

The overwhelming consensus among experienced collectors is clear: do not attempt to clean coins with artificial toning. As one participant wisely advised, “I would pass on this coin due to the color and the fingerprints personally.”

Professional Conservation vs. Amateur Cleaning

While amateur cleaning almost always decreases a coin’s value, professional conservation by qualified experts can sometimes improve a coin’s appearance without damaging its surface. However, this should only be attempted by professionals with extensive experience in numismatic conservation.

Understanding Market Acceptability

Grading Service Perspectives

The forum discussion reveals important insights about how grading services view artificially toned coins. One collector noted, “TPG grade is irrelevant in this case, it will sell for a premium because of that color. That’s my definition of market acceptable.” However, this perspective is controversial among serious collectors.

Changing Standards

“NGC is very very relaxed on the ms70 appearance. PCGS used to be stricter,” noted one experienced collector. This observation highlights how grading standards can evolve over time, making it essential for collectors to stay informed about current practices.

Long-term Preservation Strategies

Environmental Control

For any valuable coin collection, environmental control is paramount. Maintain stable temperature and humidity levels, avoid direct sunlight, and store coins in a location free from temperature fluctuations and excessive moisture.

Regular Inspection

Periodically inspect your collection for signs of toning changes, PVC damage, or other issues. Early detection of problems can prevent irreversible damage.

Conclusion: Preserving Value for Future Generations

The 1920 Lincoln cent with artificial toning serves as an excellent case study in the importance of proper preservation techniques. Whether you choose to keep such a coin in your collection or seek out naturally toned examples, understanding proper storage and handling techniques is essential for any serious collector.

Remember that the goal of conservation is not just to maintain a coin’s current appearance, but to preserve its historical integrity and value for future generations. By following the expert advice shared in this discussion and implementing proper storage techniques, you can ensure that your collection remains a valuable legacy for years to come.

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