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 typically a copper-nickel-zinc alloy, but in some instances the metal may also include traces of lead, tin and manganese. The concentration of the metals can change its characteristics. For example, the higher the amount of copper included, the more ductile this alloy becomes.