The less you handle your coins the better. In the world of collectible coins, value is directly correlated to condition and quality, which is lessened when scratches, smudges, fingerprints or scratches are present. Direct contact with your collection should be avoided, especially with coins in mint condition, but if you have to touch please do so by only holding the outer edge.

Coin cleaning, which is not recommended, should be done only by an expert, and only when absolutely necessary. The patina on an old coin might best be left undisturbed, since removing it could decrease the coin's value as a collectible.

Even though most holders offer plenty of safeguards against fingerprints and dust, you want to be sure that your really rare trade dollars are protected from moisture as well. Packets that are stapled or taped do not provide the greatest protection; however, there are alternative protectors available that guard also against moisture. Avoid any storage space that is damp and cool when selecting a storage area for your collectible coins.