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.
What is nickel silver? Nickel silver is an alloy made from 50 to 80 percent copper, 5 to 30 percent nickel, and 10 to 35 percent zinc. Although it is silvery in appearance, it is non-precious and contains no silver.