Here are some factors that can affect the value of a 1955 wheat back penny:
* Condition: The condition of a coin is the most important factor in determining its value. Circulated coins that show wear and tear are worth less than uncirculated coins that are in mint condition.
* Variety: There are two main varieties of the 1955 wheat back penny: the "plain" variety and the "micro S" variety. The micro S variety has a small "S" mintmark below the date that is visible only under magnification. Micro S pennies are rarer than plain pennies and are therefore worth more.
* Mintmark: The mintmark on a coin indicates where it was minted. 1955 wheat back pennies were minted at three different facilities: the Philadelphia Mint, the Denver Mint, and the San Francisco Mint. Pennies minted at the San Francisco Mint are the rarest and therefore the most valuable.
Here is a general guide to the value of 1955 wheat back pennies:
* Circulated plain penny: 2-5 cents
* Circulated micro S penny: 5-10 cents
* Uncirculated plain penny: $1-3
* Uncirculated micro S penny: $3-5
Please note that these values are approximate and can vary depending on the specific coin and the market conditions. If you have a 1955 wheat back penny that you are interested in selling, it is a good idea to have it appraised by a professional numismatist.