There's no simple answer. At least 4 varieties of this coin were struck and values range from a couple of bucks to about $125. You'd need to have it inspected by someone who specializes in Canadian coins.
Starting in 1968, Canadian dimes, quarters, half dollars, and dollars were all made of nickel, not silver. It's worth one dollar in Canada.
The 1968 dollar is 100% nickel. 1967 was the last year that the canada used silver for their coins.
In uncirculated condition, about five cents. 1968 pennies in circulated condition are only worth face value.
After 1967, Canadian dollar coins no longer contained silver. 1968-86, they're made of pure nickel, and are still worth one dollar each in Canada.
6 bucks
No US silver dollars were made after 1935, look at the back of the coin for 'Half Dollar'.
1920-1966 Canadian coins have the following value as of March 2 with SIlver prices at $34.69 per ounce. Dollar: $20.81, Half $10.40, Quarter $5.20 Dime: $2.08. These are all $80% silver. In 1967 and 1968 Most Canada coins went to 50% silver. After 1968, there is no silver content. This answer is from a silver perspective only. There are rare and collectible coins that have no silver.
The value of a 1969 Canadian silver quarter depends on its condition, ranging from $3 to $10 for circulated ones.
The coin is only 40% silver and has a value of $2.73 only the 1964 Kennedy half dollar was 90% silver.
The coin is a 40% silver Kennedy half dollar most are valued only for the silver, about $6.00
The US did not mint a dollar coin in 1968, therefore you don't have a 1968-D silver dollar.
It is made of 40% silver and has a melt value of about $2.50 as of 08/2008