I am guessing that you mean a 1942 nickel with the mint mark prominently stamped on the reverse above Monticello. It may be either a D,S or P. These are special wartime nickels that contained 35% silver. 56% copper and 9% manganese They were produced through 1945 and in huge numbers. They are generally worth the value of the silver in them, about $1.60 today. High grade uncirculated coins will have a premium value depending on year and mint.
The US Mint did not issue an 1896 nickel with an "S" stamped on it. If you have one then it would seem as though someone stamped the coin sometime after it left the mint. Also please don't assume that because a coin is old it has to be made of silver. All US nickels except special "war nickels" made during 1942-45 are struck in the same alloy of 25% nickel and 75% copper.
There is no such thing as a Mercury nickel. See the related question below.
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?"
If it's a regular nickel, 5 cents. If it's a silver war nickel (with a large mint mark on the back), $2.
In 1942 silver nickels were only minted at Philadelphia and San Francisco.
I have a nickel that is a color of a penny I have a nickel how much is it worth
The US Mint did not issue an 1896 nickel with an "S" stamped on it. If you have one then it would seem as though someone stamped the coin sometime after it left the mint. Also please don't assume that because a coin is old it has to be made of silver. All US nickels except special "war nickels" made during 1942-45 are struck in the same alloy of 25% nickel and 75% copper.
Nickel plated
No such coin exists. All 1942-D nickels are made out of the standard 75% copper 25% nickel. Only 1942-S and 1942-P nickels were struck out of the "war nickel" alloy of 35% silver. A 1942-D nickel is worth about 7 cents if circulated and a couple of bucks if in better shape.
All U.S. nickels weigh 5 grams as issued.
Nickel Silver
There is no such thing as a Mercury nickel. See the related question below.
30 cents; 25 for the quarter part, 5 for the nickel part.
It depends, as there was actually a change in composition In late 1942.-- If the nickel has no mintmark, or a small mintmark to the right of Monticello on the back of the coin, it is 75% copper and 25% nickel.-- If the nickel has a large mintmark above the dome of Monticello on the back of the coin, it is 56% copper, 35% silver and 9% manganese.
The obverse side of the 2005 Liberty nickel is stamped with a profile of President Jefferson on the left side, the words, "In God We Trust", the handwritten cursive word, "Liberty", and the year, "2005".
75% copper, 25% nickel, same as every other nickel since 1866 (except for 1942-45).
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?"