A 1943-P nickel in average condition is worth 75 cents to a dollar because it contains a bit less than two grams of silver.
A 1954 nickel couldn't have a P mint mark because that letter didn't appear on nickels from 1946 to 1979 inclusive. However 1954 is a common date; in average condition its retail value is only about a dime.
To explain the presence of silver in a 1943 nickel, it's a special "war nickel" minted during WWII. War nickels were made of an alloy of 56% copper, 35% silver, and 9% manganese because nickel metal was needed for the war effort. Minting began in late 1942 and continued until the end of 1945. The large mint mark letter over the dome of Monticello on the back was used to indicate the composition change.
The 1943 Lincoln cent was made of steel, not the nickel. Do a Google search to find the picture you want.
A 1943 steel penny with no mintmark can be worth $.35 - $1.50
$2 to $9000 depending upon the mint mark and the condition of the coin.
This will vary greatly depending on date and mint mark.
F is not a mint mark. It's the initial of the coin's designer, James E. Fraser. The mint mark position is on the back under FIVE CENTS. Please see the question "What is the value of a 1929 US nickel?" for more information
The 1943 Lincoln cent was made of steel, not the nickel. Do a Google search to find the picture you want.
5 cents.
It's worth about $2.00 just for the silver maybe more, but it depends on the grade of the coin.
9.0000
The value would depend on the condition and date of the coin.
100-700 usd
The value of a Jefferson nickel with a p mint mark will vary depending on the year and the condition of the coin itself. A person should have the coin appraised for an accurate value.
July 25, 2009 The value of a circulated Jefferson war nickel is based mainly upon the value of the silver they contain which is $0.78 today. In uncirculated collector coins the values vary greatly with the year and mint mark. To establish an estimated value for an uncirculated Jefferson war nickel, the year and mint mark must be known.
A 1943 steel penny with no mintmark can be worth $.35 - $1.50
It may be a little older but is very common, just face value.
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.
The coin is still found in circulation and is face value