When you post a coin, you should always post both sides. I'm assuming your coin is a 20 Rappen without seeing the reverse. They were not silver but rather nickel.
Try to be a little more clear when you ask questions. Was she worth what? Also, what do you think spearminted is?
https://www.ngccoin.com/price-guide...pen-km-27-1879-2015-cuid-1090139-duid-1532330 Just one easy google search away...
Is nickel. Switzerland was the first country to use nickel in their coins, and they did it quite early.