Also wrong. $7, $28, $40 and $200 strikes are ALL silver, $20 strike only the OUTER rim is silver and the weight is approximately .75 troy ounces. The center insert is bronze and some 24KT HGE. A good source is Bill Cohenour's guide, as he shows the composition of strikes. So if silver is $18 an ounce, a $20 has $13.50 worth of silver in it.

Dave.