[Abigail Adams]

Here is an explanation:

Older United States silver coins (1964 and before) are now in demand because of their silver content. (Many were melted down years ago.) At one time these were referred to as - junk silver - because they had no special collector value at the time. Junk silver is still used today to refer to old silver coins. However, times have changed. Today “junk silver coins” are becoming harder to find.

From: http://lynncoins.com/jsilv.htm

[library user]

I took a bunch of 1950s and earlier Jefferson nickels to a local coin dealer last week. He said they’re not worth anything beyond face value, but then proceeded to ask if I’d take 5 cents each for them. LOL. I figure they have to be worth a little more than current nickels, due to silver content during that time.

[Eric in the Ozarks]

Every once in a while, I pick up a silver dime in my change but no silver quarters. Halfs haven't circulated in ages but I remember when they were common in returned change.