There is around .77 ounces in a 1921 US silver dollar.
ZERO, because no dollar US coins were made dated 1970
No 1965 US silver dollars exist.
No. The US has never and will never make pure silver dollars.
Please see Related Answers:
If it was made from 1 US silver dollar and has all of the silver in the silver dollar still within the spoon, it is worth $22 in silver content.
From 1840 to 1935 all US silver dollars are 90% silver and have .77344oz of pure silver.
The coin is valued at a price between $25 to $50. The price will vary depending upon the condition of the silver dollar.
The 1904 U.S. quarter dollar contains 90% silver which is 0.18084 ounces.
A 1921 silver dollar with the eagle's wings are folded would be a Peace dollar. This design was put into production at the end of that year and is much less common than the 1921 Morgan-design coin. Because of its relative rarity, any apparent 1921 Peace dollar should be inspected by a professional to determine its authenticity.
Old US silver dollar dated 1921. The Peace dollars were in circulation after Morgan's. that's just design name.
In 1979, the dollar coin issued by the US was the Susan B. Anthony, which has no silver content and no real collector's value, so is a "spender".