Copied from somewhere:
1 Dollar "Eisenhower Dollar" (Silver Collectors' Issue)
1971-1977
Silver (.400) - 24.59 g - ø 38.1 mm
KM# 203a
So it is 40% silver
Assuming the USA dollar, not some other country that uses dollar also.
There were no 1945 silver dollars minted. Silver dollars were last minted in 1935 (end of the Peace Dollar) and the same sized coins would later be resurrected with no precious metal content in 1971 as the Eisenhower Dollar.
The 1971 Walking Liberty silver dollar doesn't exist, as the Walking Liberty design was last minted in 1947. However, the 1971 coinage includes the Eisenhower dollar, which contains a copper-nickel composition rather than silver. If you're referring to the value of a genuine Walking Liberty silver dollar from earlier years, its worth typically ranges from $10 to $30, depending on its condition and silver content.
1964 - $10 or so for the silver content (90% silver) 1965-1970 - $4.50 or so for the silver content (40% silver) 1971-present, 50 cents unless in mint packaging.
If it is a "S" mintmark Eisenhower dollar, it's 40% silver, if not, no silver.
One dollar.
Eisenhower Dollars were first minted in 1971.Perhaps you are thinking of a 1969 half dollar. 1969 was the last year that the Kennedy Half Dollars had silver. 1965-1969 Kennedy Half Dollars contain 40% silver.
The Eisenhower's that have 40% silver in them dated 1971 all have an "S" Mintmark and were never released for circulation.
Half dollars dated 1964 and earlier are 90% silver and are worth about $11 in silver content. Keep in mind that proof, error, and key date coins may be worth much more than pure silver content. And from 1965-1970 the half dollar was 40% silver and is worth about $4.50 in silver content. Half dollars dated 1971 and later are not silver unless found in a US mint silver proof set. Note that any half dollar made during 1965-69 is only partially silver and is worth about $3. Halves dated 1971 and later contain NO silver and are only worth 50 cents.
At the time of writing it is worth $23.30 in silver content.
1.00
90%
.14792 oz of pure silver in a 40% half dollar.