The "F" is not a mintmark, it's the designer James E. Fraser initial and is on all Buffalo nickels, mintmarks are on the back of the coin under the words FIVE CENTS. Value for circulated coins are 25 cents to $1.00
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.
1937 is a common date for Buffalo nickels. Average value is $1.00-$3.00.
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.
Check that coin again. The last year for the Indian head nickel was 1938.
The last Indian Head Nickel was dated 1938. Post new question.
In uncirculated condition, with very few contact marks, it's worth about $25.00
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.
The first Indian Head nickels were struck in 1913.
This design is called either a buffalo nickel or an Indian head nickel; both names are about equally common. Please see the question "What is the value of a 1919 US nickel?" for more information.
1927 is not a rare date. This coin is commonly called either a buffalo nickel or an Indian head nickel. Please see the question "What is the value of a 1927 US nickel?" for more information.
Please don't assume that because a coin is old it has to be made of silver. Like modern nickels, all buffalo nickels were struck in an alloy of 75% copper and 25% nickel. Please see the question "What is the value of a 1937 US nickel?" for more information.
It is worth $1.00. Check on (about.com)Indian head penny