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.
Thanks for your question.. Nickel silver is named for its silvery appearance, but ironically it actually contains no elemental silver. Nickel silver is different from plated silver in that nickel silver is not plated with silver and does not contain any real silver at all. Plated silver is metal that is actually covered in a very thin layer of silver. EP and EPNS are other markings that indicate plated silver. Given that nickel silver has no actual silver content, it is not worth anything to precious metal refiners. Unfortunately, there is nothing of value to extract. With that being said, your pieces still might be worth something if you try to sell them on eBay or to a scrap metal dealer.