The mint mark on any coin is a letter or symbol indicating the location of the mint where the coin was struck. Not all coins have mint marks, though.
1909 Lincoln cents were struck at the mints in Philadelphia and San Francisco. Philadelphia cents didn't (and still don't) have mint marks, while San Francisco cents have a small "S" under the date.
The mint mark on a 1909 VDB Lincoln cent can be found on the reverse (back) of the coin, below the wheat stalks and above the letters "ONE CENT." If there is no mint mark present, it indicates that the coin was minted in Philadelphia.
If you're referring to U.S. pennies, the mint mark is located just below the date, just as it's been since the Lincoln cent was introduced in 1909.
The Denver mint did not mint Lincoln cents in 1909, so a 1909 D Lincoln cent doesn't exist. The only two mints to mint Lincoln cents in that year were Philadelphia (no mintmark) and San Fransisco. Lincoln cents started being minted in Denver in 1911. But any 1909 cent is rare, but it prices differ greatly depending on the mintmark, so I can't really say any value without knowing the true mintmark of the coin.
Assuming no initials or S mint mark retail values are $3.50-$12.00 for circulated coins and $20.00-$25.00 for uncirculated coins
Any Lincoln cent that does not have a mintmark was struck at the Philadelphia Mint
The mint mark on a 1909 VDB Lincoln cent can be found on the reverse (back) of the coin, below the wheat stalks and above the letters "ONE CENT." If there is no mint mark present, it indicates that the coin was minted in Philadelphia.
The mint is the facility where it was made, so I assume you're referring to the mint MARK, which is the letter that indicates the facility. The mint mark position on a 1909 Indian head cent is on the back under the wreath. On a Lincoln cent, it's under the date. Most 1909 cents were made in Philadelphia so they don't have mint marks. Only a relatively small number were in San Francisco, and they carry an S mint mark.
If you're referring to U.S. pennies, the mint mark is located just below the date, just as it's been since the Lincoln cent was introduced in 1909.
The "S" mint mark is used by the San Francisco mint and is located just below the date on the 1941 Lincoln cent.
The mint mark position on all Lincoln cents is under the date: > No mint mark = Philadelphia, even on cents minted since 1980. > D = Denver > S = San Francisco, on circulation cents 1909-55 and 1968-74, and proof cents since 1968
The Denver mint did not mint Lincoln cents in 1909, so a 1909 D Lincoln cent doesn't exist. The only two mints to mint Lincoln cents in that year were Philadelphia (no mintmark) and San Fransisco. Lincoln cents started being minted in Denver in 1911. But any 1909 cent is rare, but it prices differ greatly depending on the mintmark, so I can't really say any value without knowing the true mintmark of the coin.
Assuming no initials or S mint mark retail values are $3.50-$12.00 for circulated coins and $20.00-$25.00 for uncirculated coins
The lack of a mint mark means it was struck in Philadelphia, and value is 1 cent.
Any Lincoln cent that does not have a mintmark was struck at the Philadelphia Mint
Mint marks on all Lincoln cents from 1909 to the present are located directly below the date. If it doesn't have a mint mark, that means it's from Philadelphia.
Without knowing details like the date, mint mark, and condition, the best possible answer is one cent.
The mint mark position on all Lincoln cents is the same, under the date. Possibilities are:No mint mark = Philadelphia (cents do not use the "P" mint mark)D = DenverS = San Francisco