Yes, it contains 40% silver and is worth about $5 in silver content as of the time of writing.
There are .1479 troy ounces of silver in a 1967 US Kennedy half dollar.
Kennedy half dollars minted between 1965 and 1970 contain 40% silver and are worth around $5 each.
Neither U.S. nor British pennies were made of silver. Your coin is almost certainly plated, which would mean it's only worth face value.
Your coin could not have a D mint mark on it. The Mint temporarily suspended the use of mint marks from 1965 to 1967 until enough clad coins were in stock to make up for shortages caused by the removal of silver coins for melting. See the Related Question for values.
10 cents. It is not silver and is in common circulation.
Half dollars from that year contain 40% silver and are worth around $5.
At current silver prices, it's worth about $5. Kennedy halves dated 1965-70 contain 40% silver.
Please look at the coin again, with the date 1967 it's a half dollar that's 40% silver and it's worth about $2.00 just for the silver. No US silver dollars were made after 1935.
Canadian silver dollars contain 0.6 troy ounces of silver.
Canadian silver dollars contain 0.6 troy ounces of silver.
U.S. half dollars minted 1965-1970 contain 40% silver and are currently worth around $4.50.
Half dollar minted 1965-70 are 40% silver and currently worth around $4.
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.
If you look on the back it's a HALF dollar, not a dollar. Value is about $2.00 for the silver content.
1964 halves are 90% silver. As of 05/2009 they're worth about $6-7 for the metal they contain. 1965-69 halves are 40% silver and are worth about $2.50 1971 and later halves are copper-nickel and are worth 50 cents
25 cents. The coin does not contain any silver and is in common circulation.
Most of the coins are valued for the silver at about $6.25