Look on the back of the coin to see if there's a small mint mark letter below the words FIVE CENTS. It may be blank or there may be an S. (The F on the front of the coin is the designer's monogram and not a mint mark.)
Numismedia lists the following approximate retail values as of 04/2010:
No mint mark (Philadelphia):
Very worn condition - $2
Moderately worn - $6
Slightly worn - $7
Almost no wear - $35
Uncirculated - $55 to $7,350 depending on quality
"S" mint mark (San Francisco):
Very worn condition - $7
Moderately worn - $25
Slightly worn - $99
Almost no wear - $322
Uncirculated - $530 to $46,480
This coin is also called a buffalo nickel. Both names are about equally common. Please see the question "What is the value of a 1923 US nickel?" for details by mint mark and condition. 1923 is not a rare date for Buffalo nickels. Well-worn, it's worth about a dollar. Lightly worn, it's worth about $8 A nice uncirculated one is worth about $100
100 or so
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?"
What you're seeing isn't an E and isn't a mint mark. It's a small F, which is the initial of the designer James Fraser.Mint marks on Buffalo nickels are below the word "Five Cents" on the back of the coin.blank = PhiladelphiaD = DenverS = San FranciscoThere's more information at the question "What is the value of a 1923 US nickel?"
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.
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.
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 Related Question for details
The only bill fitting that description is a silver certificate. Please see the question "What is the value of a 1923 US 1 dollar silver certificate?" for more information.