1967 Canadian junk silver was the last year Canada produced silver coins for general circulation. The $1.00 piece and the .50 cent piece are for sure 80% silver. The .10 cent piece and the .25 cent pieces were minted both in 80% silver and 50% silver, since they were transitioning to no silver at all.

There is no hallmark to tell the difference between the 50% silver and 80% silver content coins. Roughly half minted are 50% and half are 80%. Just some more information and a heads up for those looking to buy. Very nice coins nonetheless.