Bundled here are 3 (out of 12) Lewinski-Loughery Mint counterfeit Shield nickel varieties. These include 1874 Z2-K (5 documented), 1875 Z1-L (3 documented), and 1875 Z2-N (6 documented).
 
Many varieties associated with this counterfeit Family are currently rare or exceedingly rare.  The examples bundled here fit that statement, and you get examples of both documented dates made by this counterfeiter.