Assuming your coin is a 25 Peso coin minted in Mexico in 1968 for the 19th Olympic Games held in Mexico City that year, it contains about 0.52 troy ounces of silver. Disregarding any possible numismatic value, you can estimate your coin's worth by finding the current spot price of silver and dividing by 2.
The Mexican mint has never issued a 25 peso coin, never.
The US did not mint a dollar coin in 1968, therefore you don't have a 1968-D silver dollar.
USSR (32).
It is 40% silver and worth about $5 in scrap silver regardless of condition.
I have an Apollo 8 Silver Coin which I purchased in England in 1968. How much is it worth?
In the 1968 Olympics held in Mexico, France won 7 Gold, 3 Bronze, and 5 Silver medals.
Starting in 1968, Canadian dimes, quarters, half dollars, and dollars were all made of nickel, not silver. It's worth one dollar in Canada.
No you can't. All redemption in silver ceased on June 24, 1968. They are still worth face value.
The last year Canadian dimes contained silver was 1968. The 1981 dime is worth 10 cents.
It is a common year and it is only worth about $4.50 for silver scrap (it is 40% silver).
The coin is only 40% silver and has a value of $2.73 only the 1964 Kennedy half dollar was 90% silver.
If you mean turn them in for silver? you can't, June 24 1968 was the last date to redeem silver certificates.