What is the value of a 1964 E Pluribus Unum coin?

Please look at your pocket change. ALL coins carry that motto so it doesn't help to ID anything.

However, at least for coins dated 1964 values are pretty easy to determine. Cents and nickels from that year are worth face value. 1964 was the last year that dimes, quarters, and half dollars were made of 90% silver, so the metal value of those 3 denominations is about 18 to 20 times their face value as of 01/2011.