There is no one answer, because the value depends on factors such as date, mint mark, and condition. The bare minimum value is 10 cents for one with the date worn off, and prices increase and vary from there.
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.
Value is determined by the coin's date, mint mark, and condition.
The last Indian Head (or Buffalo) nickels were issued in 1938. Look at the coin again and post new question.
Please check your coin again and post a new, separate question. The first Indian head nickels were minted in 1913.
The Indian head Buffalo nickel missing a date is usually considered a damaged coin, and its value can be lower than a typical Buffalo nickel. The worth would depend on other factors like condition, mintmark, and any identifiable features on the coin. Consult with a professional coin dealer or appraiser for an accurate assessment.
Please check your coin again. It says FIVE CENTS under the buffalo so it's a nickel rather than a penny, and is called either an Indian head nickel or a buffalo nickel; both names are equally common. There's more information at the Related Question.
The US Mint did not issue a buffalo coin in 1970. Please examine your coin and submit a new question with additional information concerning it.
Check that coin again. The last year for buffalo nickels was 1938.
Please look at the date on the coin again. The first Buffalo nickel was issued in 1913.
Please check your coin again. There are only wheat cents, not wheat nickels. Your coin is called either an Indian head nickel or a buffalo nickel; both names are equally common. There's more information at the Related Question.
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