What is the value of a 1967 half dollar?

1967 half dollars are not rare, but they are made of 40% silver -- as of 01/2009 their value is about $2.00 The same applies to halves dated 1965 through 1969. Anything dated 1971 or later is only worth 50 cents, however. A Kennedy silver clad coin in the condition of "GEM UNCIRCULATED" IS worth $3