DON'T DO THE FOLLOWING:
1. Clean Coins
from coins.thefuntimesguide.com |
2. Touch Coins- with your Bare Hands.
3. Spit on Coins
This can be directly spitting on it in an attempt to clean it but can also be indirectly through bits of saliva when you chat while handling coins.Saliva contains many enzymes that can cause difficult to remove spotting and discolorations which can easily ruin your precious uncirculated and mint-state coins .
4. Break Their Holders
Never remove coins from coin holders or coins that have been slabbed. Mint set and proof set coins will greatly decrease in value once removed from the mint-issued holders they come in. Coin holders with the box and literature (if any) are considered a "set" which should be kept intact and pristine. Slabbed coins are worth a premium in their protective cases.
5. Expose Them to Acid
Cardboard coin holders |
Slab Coin holder |
Acid in this context is not the liquid chemical itself found in cleaning solutions but from what appears to be innocuous coin storage materials such as paper based containers (envelopes, paper wrapping materials, cardboard boxes, paper labels, etc.) and certain coin plastic containers (PVC-based plastic flips , holders,boxes). Common paper materials are acidic by nature and acid by products of plastics can be released around your coin over time. Same as the cleaning materials, acid from paper can cause coin spotting, discoloration, degradation of coin surfaces and can promote oxidation (toning). Coins stored in food-grade plastic containers or in soft, pliable coin flips will eventually develop a slimy green coating on their surfaces which can damage them permanently. It is recommended that only acid free paper and plastic supplies should be used in coin collection.
6. Expose Them to the Elements
Coins stored in the attic or basement can expose them to extremes of temperature and humidity that will promote their oxidation. This impacts not only the coin itself but will also hasten the breakdown of the storage storage materials mentioned above (flips, paper and cardboard, plastic containers, etc.). To best protect your collection it should be stored in a dark, dry, temperature controlled environment such as a safe deposit box or specialized coin cabinet..
safe deposit box or specialized coin cabinet from coincommunity.com |
Tags: coin collection, coin, collection, oxidation, Mint set, Mint , proof set coins , proof set , coin, Slabbed coins , Slabbed
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