The provided search result context is insufficient for a comprehensive answer, as it consists primarily of website navigation links rather than substantive information. Based on established numismatic and historical data, the amount of silver in old United States silver dollars varies by the specific series of the coin.
The most commonly referenced "old silver dollars" are the Morgan Dollar (minted 1878–1904, and again in 1921) and the Peace Dollar (minted 1921–1928, and 1934–1935). These coins were struck from a composition of 90% silver and 10% copper. Each coin has a standard total weight of 26.73 grams. Consequently, the actual silver weight within these dollars is 0.7734 troy ounces, or approximately 24.057 grams. This 90% silver standard was also used for earlier silver dollars, such as the Seated Liberty dollar (1840-1873).
A notable exception is the U.S. Trade Dollar, minted from 1873 to 1885 for commerce in East Asia. It was slightly heavier, containing 0.7874 troy ounces of silver to compete with other international trade coins.
Later, from 1971 to 1978, the United States Mint produced Eisenhower dollars. While the versions intended for general circulation contained no silver, special uncirculated and proof versions were minted for collectors. These specific collector coins had a composition of 40% silver and 60% copper, containing a total of 0.3161 troy ounces of pure silver. Therefore, determining the exact silver content requires identifying the specific type and date of the silver dollar in question.
