1891 is a relatively common date for Liberty nickels, sometimes also called V nickels because of the Roman numeral V - i.e. 5 - on the back.
Numismedia lists the following retail values as of 08/2009:
Very worn condition - $6
Moderately worn - $18
Slightly worn - $36
Almost no wear - $100
Uncirculated - $145+
It's the usual practice of this site to answer a single question at a time. Please see:"What is the value of a 1940 US nickel?""What is the value of a 1942 US nickel?""What is the value of a 1944 US nickel?"
$1.00
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.
The US nickel was first issued in 1866. Please double-check your coin.
In average condition, both coins are only worth their face value.
It's the usual practice of this site to answer a single question at a time. Please see:"What is the value of a 1940 US nickel?""What is the value of a 1942 US nickel?""What is the value of a 1944 US nickel?"
$1.00
To clear things up, the "lady" is Miss Liberty, and "V" is of course the Roman numeral for 5.However, the last Liberty Head nickels were struck for circulation in 1912 so your coin can't be dated 1981. If you meant 1891, please see the question "What is the value of an 1891 US nickel?" for more details.
As of 16 Feb 2018, the melt value of one US nickel is 4.4 cents.
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.
Please check your coin again and post a new, separate question.There aren't any "buffalo head" nickels. They're called Indian head OR buffalo nickels and show the entire animal, not just its head.There aren't any from 1891, either. The first Indian head nickels were minted in 1913. An 1891 nickel would be a Liberty head nickel.
The US nickel was first issued in 1866. Please double-check your coin.
5 cents.
A 1957 nickel is worth face value only, unless it's uncirculated or a proof coin.
In average condition, both coins are only worth their face value.
All US coins dated 1891 have the word LIBERTY on them and 4 US Mints were operating in 1891 so post a new question with the denomination & mintmark.
Average current retail value is $5.00