Rarity Equals Value
The value of old and rare coins are generally higher than newer coins or those that were manufactured in huge quantities.
There are 70 grades used to determine a coin’s condition. A coin in pristine condition is generally more valuable than one which is damaged.
Poor Condition Coins
Even a damaged coin may have value because of the precious metal it contains. This is referred to as "bullion value." If you like, you can still make money from gold and silver found in your coin.
Types of Appraisals
Specify the appraisal - replacement value of coins or the bid value of coins:
Replacement value is what it would cost you to literally replace a coin if damaged or lost due to natural disasters or burglary.
The bid value is how much you’ll be offered by a coin dealer to buy a coin.