Keys are symbols of opening and closing. Locks and keys affect our lives in various ways. Sometimes a key means the difference between freedom and incarceration, or life and death. Keys also affect our lives in other ways; they give us security – we can lock our door and know that no one else has the key.

Keyed alike is the term used to describe multiple locks having the same cut so that one key can fit all the locks. Having your locks keyed alike is the most convenient way to handle and manage all your keys.

The earliest patent for a double-acting pin tumbler lock was granted to American physician Abraham O. Stansbury in England in 1805, but the modern version, still in use today, was invented by American Linus Yale Sr. in 1848.