$13.81/ounce
 

The magic number for 90% silver. At that price, all coins are worth 10X face value. The dime becomes the 21st century silver dollar and the half the 5 dollar.

Re: $13.81/ounce
 

@13.51, 40% half dollars will be worth $2 in terms of their silver content.

Re: $13.81/ounce
 

that is good info but here is all I do to get it: http://www.coinflation.com/

http://www.coinflation.com/silver_coin_values.html