Assuming you're referring to the large size dollar coin, then it's Dwight D. Eisenhower on dollar coins dated 1971-1978.
One dollar, and they have no silver in them.
Is it a Morgan Silver dollar? Try Aboutdot.coins
$13 to $18
It's still worth one dollar.
1.00
sliver dollar
Unless it is a "proof" coin (actual silver), it is worth one dollar.
It depends if this coin is the peace dollar or the Morgan dollar. Both were made in 1921.
1,000 USA money.
value
In terms of dollar value gold is worth more
By the date 1979 your coin is a Susan B. Anthony dollar and none of the SBA Dollar coins struck for general circulation have more than face value and none have any silver. Only proof and uncirculated collectors coins sold from the Mint have premiums.