Assuming no mint marks $9.00-$60.00 in average circulated condition.
It was 100 dollars!
20 half dollars have a face value of a $10.
$ 60000
There are no 1918 silver dollars Please see the Related Question for information about 1922 dollars.
The motto E PLURIBUS UNUM is on all Walking Liberty half dollars and adds nothing to the value. Coins of this date have and average value of $7.00-$9.00
Total mintage of 1918 Walking Liberty halves is 20,769,040
The silver melt value of 820 US half dollars is $10,113.74. The silver melt value of 820 1965-70 US half dollars is only $4,135.40.
200
The average value of circulated half dollars is $300.00- $500.00
Kennedy half dollars from banks or in change are just 50 cents.
100 dollars
Half a thousand dollars . . .