Please post a new question with the coins' dates, conditions, and mint marks. It's not possible to give values without that information.
Alternately check out a site such as www.Numismedia.com that lists current values by date, condition, and mint mark.
The value of a 1990 US nickel in circulated condition is typically worth face value (5 cents). If it is in uncirculated condition or has a unique error, it may be worth more to collectors.
If you found it in change, no added value. A nice uncirculated one will sell for 25 to 50 cents.
All Jefferson Nickels from 1960 to date struck for circulation are pocket change. Spend it
About 1.1 billion were minted so they're not rare. If you found it in change, it has no extra value. Uncirculated, it might sell for all of a quarter.
5 cents
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?"
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.
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.
Liberty nickels were made from 1883 to 1912. Your coin is a familiar Jefferson nickel. Please see the question "What is the value of a 1939 US nickel?" for values.
not 1990. The last V nickels were struck in 1912. Please check again and post a new question.