In order to give an accurate estimate, the coin should be seen. I suggest you take it to a coin dealer and have it appraised.
In circulated condition, about 3 cents.
In average circulated condition, value is 50 cents to $2.00
There's no coin called a "buffalo penny". Indian head cents were made from 1859 to 1909, and buffalo nickels were made from 1913 to 1938.
A US cent dated 1913 is a Lincoln cent and the word Liberty is also on the front of the coin.
The value very much depends on the grade (condition) of the coin. Most are low grade coins that sell from 25 cents to $2.00.
1-4$
In circulated condition, about 3 cents.
In average circulated condition, value is 50 cents to $2.00
I can find no reference to a "unique" 1913 Penny from any country.
There's no coin called a "buffalo penny". Indian head cents were made from 1859 to 1909, and buffalo nickels were made from 1913 to 1938.
Penny Illustrated Paper ended in 1913.
There has been talk of eliminating the US penny for many years. Before they switched from the bronze alloy penny to the copper clad zinc penny it cost about 3 cents to mint every penny. Even the copper clad zinc penny costs more than a penny to mint. Of all standard issue US coinage only the nickel (5¢) and the penny cost more than their face value to mint.
There is no such coin. Buffalo NICKELS were first released in 1913. No 1-cent coin has ever carried a buffalo image.
The 1924Lincoln penny is worth $4.00 worth
A US cent dated 1913 is a Lincoln cent and the word Liberty is also on the front of the coin.
A penny is always worth a penny no matter what.
In 1896 a penny was worth a penny. If you have a penny dated 1896 then it is worth more than that.