There is 24 grams of silver in a 1891 US silver dollar.
An 1891 US Dollar would be a Morgan Dollar. The walking Liberty design was used only on half dollars from 1916 to 1947 and on 1-oz silver bullion coins issued since 1986. There's more information at the Related Question.
what is the current value of an 1878 silver dollar
The coin has .77344oz of pure silver.
The US only issued $1 silver certificates dated 1957. No other denominations have that date. The last $20 silver certificates were issued in the 1891 series.
1 dollar
There is no silver in a 1972 US half dollar.
There is around .77 ounces in a 1921 US silver dollar.
A US silver dollar from 1840 to 1935 contains .77344oz of pure silver.
The amount of pure silver in the 1922 Peace dollar is .77344oz, all US silver one dollar coins from 1840 to 1935 have this much silver in them.
The amount of pure silver in the 1925 Peace dollar is .77344oz, all US silver one dollar coins from 1840 to 1935 have this much silver in them
An 1891 US Dollar would be a Morgan Dollar. The walking Liberty design was used only on half dollars from 1916 to 1947 and on 1-oz silver bullion coins issued since 1986. There's more information at the Related Question.
what is the current value of an 1878 silver dollar
Yes, but very long ago. The last printing of $20 silver certificates was the 1891 series.
There are .1479 troy ounces of silver in a 1967 US Kennedy half dollar.
The coin has .77344oz of pure silver.
The US only issued $1 silver certificates dated 1957. No other denominations have that date. The last $20 silver certificates were issued in the 1891 series.
A 1974 US silver dollar, also known as an Eisenhower dollar, weighs 24.59 grams.