Without seeing the mark it is difficult to give an estimated value. The mint did not intentionally make a nickel with a mark above the head but sometimes damage to the dies will create a mark. I would suggest you take it to a coin dealer who can actually see what you have and perhaps can give you more information about it.
value of a 1936 buffalo head nickel
The coin is called an Indian head nickel or a buffalo nickel, not a "buffalo head". It shows the entire buffalo, not just its head. Please see the question "What is the value of a 1920 US nickel?" for more information.
A Liberty head nickel, I'm guessing. The value is between $2 and $125. In the future, please add the condition of the coin so I can value it more precisely for you.
There is no such thing as an Indian head nickel minted in 1895. The first Indian head nickel was minted in 1913; prior to that was the Barber nickel, with the head of Liberty.
It's not a Buffalo Head nickel, it's a Indian Head and/or a Buffalo nickel. Average value is $1.00-$3.00.
The coin is called an Indian Head nickel or a buffalo nickel, not "buffalo head" - after all, it shows the entire buffalo! Please see the question "What is the value of a 1936 US nickel?" for more information.
The coin is called an Indian Head nickel or a buffalo nickel, not "buffalo head" - after all, it shows the entire buffalo! Please see the question "What is the value of a 1934 US nickel?" for more information.
This coin is commonly called either a buffalo nickel or an Indian head nickel but not a "buffalo head nickel" - after all, it shows the whole buffalo! Please see the question "What is the value of a 1927 US nickel?" for more information.
The coin is called either an Indian Head nickel or a buffalo nickel, but not "buffalo head". After all, it shows the entire buffalo and not just its head, LOL! Please see the question "What is the value of a 1930 US nickel?" for more information.
It's 100% certain that you have an Indian head nickel, and not a Liberty head nickel. There are millions of the former, and only 5 of the latter. Please see the question "What is the value of a 1913 Indian head nickel?" for more information.
These coins are normally called either a Buffalo nickel or an Indian Head nickel. After all, the entire buffalo is shown, not just its head. Please see the question "What is the value of a 1925 US nickel?" for more information
The coin is normally called either a Buffalo nickel or an Indian Head nickel. The entire buffalo is shown, not just its head, LOL! Please see the question "What is the value of a 1937 US nickel?" for more information.