British 50% silver Halfcrown coins minted from 1920 to 1952 inclusive weigh 14.14 grams. 1 ounce equals about 28.35 grams, so two Halfcrown coins would slightly less than one ounce.
if a silver dollar is 90% silver it would take 1 and 1/10th silver dollars to make an ounce of silver
Each Kennedy half that was minted in '64 or earlier had .36 troy oz of silver meaning a little less than three would equal an ounce of silver which is running for 29.30 an ounce last i checked. <><><><> Half dollars made 1965-1970 contained only 40% silver, instead of the 90% of earlier coins, so it would take more coins. Half dollars made after 1970 contain no silver.
The value of silver rose so the US had to use other metals to make coins. If our coins were still made of silver dimes would be worth $2 and quarters would be worth $5.
U.S. quarters minted before 1965 weighed 6.25 grams and contain 90% silver, which comes out to 5.625 grams of silver per coin. One ounce is about 28.35 grams, so it would take five quarters to get one ounce (5.04 coins, to be more exact).
One American Silver eagle dollar will make an ounce of silver. Only silver dollars dated 1935 and older contain silver. They contain about .77 troy ounces of silver. So about 1.3 Silver dollars 1935 and older would make an ounce of silver.
A mercury dime contains 0.0723 troy ounces of silver. You would need 13.83 mercury dimes to get 1 troy ounce of Silver.
Silver & gold are weighed by the Troy ounce which is 31.1 grams.
The coins only weigh 12.5 grams to start with, so they can't have an Ounce of silver in them. 90% silver halves contain .36169 of an ounce of silver. 3 would be just a little more than One Ounce.
3 well equal a little more than a ounce of silver.
One 1964 or earlier silver quarter= 0.1808 of an ounce of silver. So, it takes about 6 90% silver quarters to make one ounce of silver. 6 silver quarters= 1.0851 ounces.
It depends on if the coins are silver or clad and the denominations.