There's no way to give any specific answer without knowing the date on the coin.
That depends on which version you have. If there is no mintmark, then it's made of copper and nickel, worth maybe 50 cents in decent condition. If there is a large letter P on the back (above Monticello), then it's a silver war nickel, worth a dollar or two.
That's a silver war nickel. On average, it's worth about $2, or upwards of $4 if uncirculated.
A Liberty head nickel, I'm guessing. The value is between $2 and $125. In the future, please add the condition of the coin so I can value it more precisely for you.
The large "P" above the dome means it's a "war nickel" that is struck in 35% silver. The nickel was removed for the war effort and silver was used as a replacement, this was done from 1942 - 1945. Because it has a small amount of silver the value is about $1.00. NOTE: The 1942 war nickel is the first US coin to ever use a "P" Mintmark.
the value of the nickel is 5 cent
Canadian nickels (1922 and later) never contained silver. A 1967 Centennial nickel is made of 99.9% nickel and is worth about 15 cents in above-average condition.
Well... it depends on who wrote the letter. For example, if I had written the letter in 1966.. it wouldn't be worth a plugged nickel!
This is a War Nickel (1942-1945) that has silver in it. The large "S" above the dome identifies it, circulated coins are valued at $1.00-$3.00 uncirculated are $5.00-$10.00 but all values depend on he grade of the coin.
A 1945 nickel with an "S" mintmark above Monticello (the building on the back) is a wartime nickel made of 35% silver. Its value depends on the coin's condition and silver content but typically ranges from a few dollars to around $10.
Without seeing the mark it is difficult to give an estimated value. The mint did not intentionally make a nickel with a mark above the head but sometimes damage to the dies will create a mark. I would suggest you take it to a coin dealer who can actually see what you have and perhaps can give you more information about it.
It's a 2004 Jefferson nickel that has been gold plated, has no collectible value and is just a fancy nickel.
It's a 2004 Jefferson nickel that has been gold plated, has no collectible value and is just a fancy nickel.