These are 1943 dated Canadian 10 Cents and 25 Cents, both made from .800 silver, the Canadians used higher grade silver in their coins long after the UK had gone to 50% and were still using silver when the UK had stopped using silver altogether.
The 10 Cents coin featured a famous sailing boat called the Blue Nose, this ship was built as a duel fishing and racing vessel and won many races, it was built in Canada in the 1920's and was wrecked in 1946.
The 25 Cents (or quarter dollar) coin featured a Caribou on the reverse, more commonly known as a Reindeer, Canada's coins feature lots of their national wildlife and still do.
Production of the two coins for their specific years are as follows.
10 Cents 1943 dated, 21,143,229 minted
25 Cents 1943 dated, 13,559,575 minted
The 10 Cents is roughly the same size as a UK 5p and tiny.