Regardless of mint mark any circulated nickels from 1970 are in fact only worth, well, a nickel. as of 02/2010 even uncirculated ones only go for about 20-25 cents at retail, maybe 15 cents wholesale.
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?"
About 75¢, retail
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.
In average condition, both coins are only worth their face value.
About 75¢, retail
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?"
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.
The United States did not produce quarters from silver in 1970, only ones from an alloy of copper and nickel.
5 cents.
If you found it in change, no added value. A nice uncirculated one will sell for 25 to 50 cents.
The percentage of silver is zero. None. Nada. Zilch. Those coins are 75% copper, 25% nickel. During WW 2 some US nickels were 35 percent silver. But not in 1970.
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.