The value of any coin is most dependant on it's rarity. Mis-struck coins are exceptionally rare and, therefore, exceptionally valuble. I can't give an exact number, it's worth what someone will pay for it. A few years ago, brand new, mis-struck state quarter sold for over $500,000. I would take the coin to a coin dealer or an auction house like Sotheby's.
Reality Sets InMis-struck can mean alot of things -- from a coin that is slightly off-center, a coin that is missing letters due to a foreign substance in the die, or other common striking errors that are not worth much -- to rare doubled die errors, off-metal errors, and other rarities worth hundreds or thousands of dollars.
Without knowing exactly what kind of "mis-struck" error you have, it would only be blowing air up your skirt to give you an estimated value.
last number missing on date
Without knowing how it was mis-struck it's not possible to assign a value. Coins are subject to many different possible minting errors and their values vary a lot.
Please post a new, separate question with a description of the error.
All error coins need to be seen. Take to a coin collector or dealer.
Also note that coins are minted or struck. Printing involves paper and ink or similar materials.
Without seeing the coin it's not possible to estimate a value. Error coins normally should be examined in person by a dealer or appraiser who's familiar with errors.
Not enough information. It would depend on how major the error is. The best chance is to take it to a coin dealer and ask him/her.
More information is needed. Please check your coin again and post a new, separate question with a better description of the suspected mis-strike.
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?"
Face value unless in original mint packaging.
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.
This was a common circulation coin in Germany up till the changeover to euros in 2002. At that time it was worth about a US nickel.
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.
Average current retail value is $5.00
Check that coin again. The first U.S. nickel was issued in 1866.
This famous design is also frequently called an Indian head nickel. Please see the question "What is the value of a 1920 US nickel?" for more information.