Each denomination of US silver coins has different amounts of silver, so it's not possible to answer this question. Be more specific and post new question with the dates of the coins.
These coins are NOT rare and are worth face.
$1.35
These coins contain no silver and are worth only face value.
The U.S. made no dollar coins in 1990.
Eisenhower silver dollars were not well-circulated. Uncirculated coins from 1971 are worth a few times their original value whereas worn, circulated coins are worth only a few cents more than their original value.
August 24, 2009 1400 grams of silver coins are worth $571.60.
They are bullion coins and are worth only what the metals they are composed of are worth.
10 grams of silver is around £8.77 depending on the carat or the silver
Now its 100 coins and silver is worth 200 coins.
you tell me
These coins are NOT rare and are worth face.
$1.35
These coins contain no silver and are worth only face value.
$5.00
~$2.6 in 2012
About 15 dollars.
As issued, the coins weigh 26.73 grams.