The US did not mint a dollar coin in 1968, therefore you don't have a 1968-D silver dollar.
There's no silver in it, and it's worth one dollar.
how much is a 1924 silver dollar worth
1896 silver dollar is worth how much?
A dollar
a dollar
It depends greatly on the year, early silver dollar proof dollars can be worth several thousand dollars, modern silver dollar proofs of common dates might be worth $20 or so for silver scrap.
how much is a 1799 silver dollar worth
A Washington silver dollar, believe it or not.
One dollar.
One dollar.
One dollar.
A 1921 Morgan dollar is worth about $25.00