Is the imprint normal or mirror-imaged? If it's the normal direction, you might have a nickel that somehow fell into a cent press and was struck twice. However since cents are smaller than nickels, the coin should show some other damage from the press. Regardless, in that case you'll need to have it examined in person by someone who specializes in error coins. If it's a double strike it could have some definite extra value. If the images are reversed, what probably happened is that someone with too much time on their hands put a cent on either side of the nickel and hit it with a hammer, driving a mirror image of the cents into the nickel's surface. If that describes what you have it's considered damaged and is worth exactly 5 cents.
Jefferson nickels tend to tone a copper-gold color and adds nothing to the face value of 5 cents.
No letter below the date means it was minted in Philadelphia. It's worth exactly one cent.
A Buffalo Nickel stamped on a penny is worth $800.00. A Jefferson Nickel stamped on a ZN penny is worth $70.00. A Jefferson Nickel stamped on a CU penny is worth $60.00.
size and value
There's no such coin. Lincoln is on the penny.
It is a mule.
This is not a Mint error, it's a novelty coin that has no collectible value.
The value to a collector depends on the coin's condition. Show it to a coin dealer.
Santa was added to the coin after it was made. It only has value to someone that wants it.
The reason your coin is the size and color of a nickel is that it IS a nickel, not a penny. Remember Roman numerals? V = 5. Please see the Related Question for more information.
OK, it's not Lincoln, he is only on the penny. With a date of 1903 it's a Liberty Head nickel an has a value of $3.00-$5.00 in circulated condition
The reason your coin is the size and color of a nickel is that it IS a nickel, not a penny. Remember Roman numerals? V = 5. Please see the Related Question for more information.
$14,500
There are no British general circulation Pennies made from cupro nickel, from 1860 to 1967 they were all made from bronze. If you have a cupro nickel penny, it has been plated and is worthless as a collectible.