The Walking Liberty silver 50-cent piece is composed of 90 percent silver, and 10 percent copper. It was in production from 1916 to 1947, and weighs 12.5 grams.
It weighs 12.5 grams; 90% of that is silver and the rest is copper.
Barber, Walking Liberty, Franklin, and 1964 Kennedy halves weigh 12.5 gm and were made of 90% silver, so they contain 11.25 gm of pure silver.
Barber halves (as well as Walking Liberty, Franklin, and 1964 JFK halves) weigh 12.5 gm when unworn and are composed of 90% silver, 10% copper.
As issued, the coins weigh 26.73 grams.
Actual silver dollars (Peace, Morgan, Seated Liberty, etc) weigh 26.73 grams, though a worn coin would weigh slightly less. Then in the 1970s, there were two versions of the Eisenhower dollar. One was 40% silver with a weight of 24.62 grams, and the circulating copper version is 22.68 grams.
Barber, Walking Liberty, Franklin, and 1964 Kennedy halves weigh 12.5 gm and were made of 90% silver, so they contain 11.25 gm of pure silver. 1965-70 Kennedy halves weigh 11.5 gm and are 40% silver. All 1971 and later circulating half dollars are made of copper-nickel, not silver.
One of the easiest and most accurate ways to determine the authenticity is to weigh it. A genuine Seated Liberty silver dollar should weigh 26.73 grams.
A US Walking Liberty Half dollar dated 1917 will weigh 12.50 grams.
The copper-nickel coins weigh 22.68 grams. The 40% silver coins weigh 24.59 grams.
The coins are 90% not 93% silver. The coins weigh 2.5 grams.
Franklin Pierce was never on any US silver dollars. All circulating silver dollars carry a picture of Miss Liberty, and the last ones were made in 1935.If you're referring to one of the modern presidential dollar coins, they're made of brass and they weigh 8.1 gm regardless of the minting date or portrait.
Older coins were made of different metals, such as silver or copper. Coins that used to be silver are now nickel or nickel-coated copper, and coins that were copper are now copper-coated steel or zinc.