Dogs perform many roles for people, such as hunting, herding, pulling loads, protection, assisting police and military, companionship, and, more recently, aiding handicapped individuals. This impact on human society has given them the nickname  man's best friend  in the Western world.
When looking to acquire nickels with Silver content, look for Silver War Nickels. The term Silver War Nickels refers to those produced by the United States Mint from mid-1942 to 1945. These nickels differ from those minted before and after World War II, as those were made from 56% copper, 35% Silver and 9% manganese.
90% Silver Roosevelt Dimes were minted from 1946 to 1964. This well-known dime was designed by Chief Engraver John R. Sinnock and was first released to the public on January 30, 1946, which would have been Roosevelt's 64th birthday.