Five cents each or less
Retail for the Philadelphia issue is 96 cents, the Denver is $12.00
If it's from Philadelphia, about 60¢ retail. From Denver or San Francisco, about $1.50
It depends on the date of the Denver minted Buffalo nickel, post new question.
F is not a mint mark on any buffalo (nor any other) nickel, though the buffalo nickel was designed by one J.E. Fraser. In 1923, there were 35.7 million nickels minted in Philadelphia, with another 6.1 million in San Francisco, but none in Denver.
This is a common date in the Buffalo Nickel series - and in average-circulated condition, retails for about $1. If it's uncirculated, it can retail for up to $50 or $60.
I had to change your question because the words are BUFFALO and NICKEL. Anyway, the first buffalo nickel was not minted until 1913 so there can't be an 1892 coin. If you have a coin with that date it is a Liberty nickel because it has a picture of Miss Liberty on the obverse (you did see that there wasn't a buffalo on either side, correct?) If so, an 1892 Liberty nickel will retail for about $6 if very worn, up to maybe $100 if almost uncirculated.
The mint mark on buffalo nickels can be found on the reverse (tails) side, right at the bottom, below the words "five cents." No mint mark indicates Philadelphia, D is for Denver, and S is San Francisco.
About 1.50 depending on condition. Uncirculated about $5
The 1925 Buffalo nickel was issued as business strikes only from all 3 Mints. Philadelphia Mint/35,565,100. Denver Mint/4,450,000. San Francisco Mint/6,256,000. Total of coins = 46,271,000.
The mint mark on buffalo nickels is located on the reverse (tails) side, just below the words "FIVE CENTS." D is for Denver, S for San Francisco, and Philadelphia had no mint mark.
On buffalo nickels, the easiest way to check if the coin is uncirculated when compared to a coin that is almost uncirculated or extra fine is to look at the horn on the buffalo on the reverse. On an uncirculated coin, it should have no wear at all, as the grades get lower the wear becomes evident.
The difference is, a circulated coin has been used. An uncirculated coin has not been used and shows no signs of wear.