Why cleaning is a big mistake.

Have you discovered old coins or a numismatic collection and are considering selling them? Perhaps you received these coins from an inheritance, or thry have been unnoticed in your basement for years. As you consider the next steps, you might be tempted to clean them in hopes of increasing their value. However, this “well-intentioned” effort can lead to irreversible damage, significantly reducing the worth of your collection.

I am here to help you properly care for your coins to ensure they remain in the best possible condition. Below, I will provide some easy tips on how to maintain your coins and preserve their value. Let us work together to protect the value of your collection and get it ready for sale.

The Golden Rule: Never clean your coins or medals. One of the most critical mistakes you can make is attempting to clean the coins or medals. While it may seem like a way to enhance their appearance, cleaning often results in damage that cannot be undone. Dirt, stains, and the natural patina that develop over time are not imperfections; they are a testament to the coin’s journey through history and a vital part of its authenticity and value. These age-related characteristics form a protective layer that naturally preserves the coin.

Why cleaning is Harmful.

The patina that forms on coins over time is a significant contributor to their value. Cleaning removes this valuable layer, erasing the historical essence and financial worth of the coin. Additionally, handling and polishing coins can cause micro-scratches that damage their original state, leading to irreversible harm that reduces their appeal and value.

Photo: Cleaned coin compared to a coin with natural patina.

Less is more: How to do it right.

It is essential to keep coins and medals in their original condition. If they have been stored in their original packaging, such as boxes or capsules, it is best to leave them undisturbed. These cases offer protection and add to the coins’ authenticity. When handling coins, always hold them by the edges to avoid leaving fingerprints on the surface.

Photo: Medal in its original box.

If medals are stuck in their boxes, it is crucial to proceed patiently and carefully. Never use sharp or inappropriate tools like knives, screwdrivers, or pens, as these can damage or scratch the medal. Similarly, avoid tilting the box and letting the medal fall out, as this can cause edge bumps and further damage. Instead, gently work to release the medal, and if it is particularly stuck, lightly shake the closed box to help free it. Patience is your best ally in ensuring the medal remains undamaged.

If you have questions about handling your numismatic collectibles or the sales process, I am here to assist you. Let us find the best solution together. Feel free to contact me!