Anywhere from 5¢ to 5$, depending on the condition.
1917 Wheat Penny: With no mint mark, in good condition is worth $0.20, uncirculated is worth $25.00. With D mint mark, in good condition is worth $0.25, uncirculated is worth $110.00. With S mint mark, in good condition is worth $0.40, uncirculated is worth $125.00.
A US Lincoln cent without a mintmark was made in Philadelphia, no one cent coin has a P mintmark. 1955 is a common date wheat cent, most are 2 to 5 cents.
1951 Wheat penny: With no mint mark, in very fine condition is worth $0.10, uncirculated is worth $1.50, proof is worth $35.00. With D mint mark, in very fine condition is worth $0.10, uncirculated is worth $0.60. With S mint mark, in very fine condition is worth $0.10, uncirculated is worth $2.00.
1950 Wheat Penny; With no mint mark, in very fine condition is worth $0.10, uncirculated is worth $1.50, proof is worth $45.00. With D mint mark, in very fine condition is worth $0.10, uncirculated is worth $1.00. With S mint mark, in very fine condition is worth $0.10, uncirculated is worth $1.25.
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 great majority of them are worth one cent. But if you happen to have a 1955 "S" mint mark penny, I understand those are worth a fair amount of money.
1917 Wheat Penny: With no mint mark, in good condition is worth $0.20, uncirculated is worth $25.00. With D mint mark, in good condition is worth $0.25, uncirculated is worth $110.00. With S mint mark, in good condition is worth $0.40, uncirculated is worth $125.00.
A US Lincoln cent without a mintmark was made in Philadelphia, no one cent coin has a P mintmark. 1955 is a common date wheat cent, most are 2 to 5 cents.
Usually S mintmark wheat pennies are worth more.
It is worth 1 cent.
I would imagine that it was worth 500 marks!
1939 Lincoln, Wheat Ears Reverse (Wheat Penny): With no mint mark, in very good condition is worth $0.05, uncirculated is worth $3.00, proof is worth $35.00. With D mint mark, in very good condition is worth $0.45, uncirculated is worth $11.00. With S mint mark, in very good condition is worth $0.15, uncirculated is worth $8.00.
No mint mark indicates that it was minted in Philadelphia. The coin is worth exactly one cent.
1951 Wheat penny: With no mint mark, in very fine condition is worth $0.10, uncirculated is worth $1.50, proof is worth $35.00. With D mint mark, in very fine condition is worth $0.10, uncirculated is worth $0.60. With S mint mark, in very fine condition is worth $0.10, uncirculated is worth $2.00.
1950 Wheat Penny; With no mint mark, in very fine condition is worth $0.10, uncirculated is worth $1.50, proof is worth $45.00. With D mint mark, in very fine condition is worth $0.10, uncirculated is worth $1.00. With S mint mark, in very fine condition is worth $0.10, uncirculated is worth $1.25.
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.
US cents from Denver and San Francisco have had mint marks since 1908 so you have over a century to choose from. In general, anything from the 1960s onward is only worth a cent. Anything from the 1950s is worth 1 to 3 cents. Older than that, values are all over the map so if you have an older wheat cent please post a new question with its date.