No. In fact, there are no mint marks on coins made in Philadelphia prior to 1979, except for the famous "war nickels" issued from 1942 to 1945. The first US mint marks were used in 1838 when branch mints were opened in New Orleans, Dahlonega, and Charlotte.
During the changeover from silver to clad coinage mint marks weren't used on any coins dated 1965-67.
Starting in 1979, $1 coins gained the P mint mark. The following year all other Philadelphia coins except for cents also began using the P mint mark.
Philadelphia cents continue to be struck without mint marks, for complex reasons having to do with special production at other mints when Philadelphia and Denver can't meet the demand for pennies.
Coins made at the Philadelphia mint did not have mint marks until the 1980s. Your coin was made at the Philadelphia mint.
If your coin does not have a mint mark then it means it was minted at the Philadelphia mint. These coins are usually not as rare. However recently P mint marks were added to coins to indicate that they were made at the Philadelphia mint.
A mint mark is a letter or other symbol to indicate where a coin was minted.
The US mint did not use mint marks on the 1965 half dollar coin.
In general, "S" mint marks from the San Fransisco mint are more scarce than other mint marks when it comes to pennies. But just because it has an "S" on it doesn't make it a rare, or even scarce coin.
Coins made at the Philadelphia mint did not have mint marks until the 1980s. Your coin was made at the Philadelphia mint.
If your coin does not have a mint mark then it means it was minted at the Philadelphia mint. These coins are usually not as rare. However recently P mint marks were added to coins to indicate that they were made at the Philadelphia mint.
A mint mark is a letter or other symbol to indicate where a coin was minted.
The US mint did not use mint marks on the 1965 half dollar coin.
In general, "S" mint marks from the San Fransisco mint are more scarce than other mint marks when it comes to pennies. But just because it has an "S" on it doesn't make it a rare, or even scarce coin.
Check that coin again. Mint marks were on all quarters by 1981.
If a penny has no mint mark, it typically means it was produced by the Philadelphia Mint. Mint marks indicate where a coin was minted, and coins from the Philadelphia Mint, the oldest U.S. Mint facility, do not have a mint mark.
You have to know the coin's denomination and date. Mint marks are in all sorts of different places, not even necessarily the same place during the same year! One of the best places to look is a site such as www.coinfacts.com that tells you the location of every mint mark on every U.S. coin ever struck.
The letter on quarters represents which mint facility produced the coin. "P" stands for Philadelphia Mint and "D" stands for Denver Mint. These marks help identify where the coin was minted.
The lack of a mint mark indicates that the coin was minted in Philadelphia.
Assuming USA coin - question does not say. Not all have mint marks. If there is one it is above 72 of date.
For most US coins, it means the coin was minted at Philadelphia before 1980, when the P mint mark was adopted. Cents minted at Philadelphia and West Point don't have mint marks, and all coins dated 1965 through 1967 don't have mint marks regardless of where they were produced.