Some people collect things like stamps, postcards, or coins. I’m drawn to unique doors, locks, and keys.
Keys are something everyone has; whether it’s a house key, a car key, or an inner door key. Modern keys come in several forms: Lever (usually used in padlocks or furniture), pin tumbler, dimple, computerized laser (often used in cars), Nutech, cross, skeleton, barrel, transponder, cards, Abloy, and many more.
We tend to think of skeleton keys as antiquated, but here in Switzerland, even modern room doors within a home have skeleton keys for their locks (though we use dimple keys on main doors). Even though they’re still used, skeleton keys are one of the oldest forms of keys in history. The Romans had elaborate keys that were nearly as wide as they were long, but they already had the typical ringed head we think of when we think of a skeleton key; it made it easy to slip in a finger and pull the key out of the lock.
The oldest key found was in the ruins of Ninevah (the capital of ancient Assyria), going back to around 4,000 BC. It was a simple wooden prodder inserted into a hole in a door to lift pegs within a wooden bar used to hold the door securely from the inside; it could only be secured from the inside and was easy to open with any pegged stick. This type of wooden pin lock was common in ancient Egypt, but they’ve also been found in places like Japan and Scandinavia. It is alluded to in the Bible in such passages as Nehemiah 3:3,6,13-15 or Isaiah 22:22-23.
The Romans improved on the idea and began making brass and iron keys with the ground-breaking technology of projections (wards) inside the lock that required a specific combination to be opened, thus requiring a specific key. The warded key outlasted the Roman Empire itself by more than a thousand years. Though these locks were easy to pick, no major advancements were made in the design until the late 18th century, when Robert Barron invented a new locking mechanism that we essentially recognize as the tumbler lock. Joseph Bramah improved further on the design a few years later, using a cylindrical key with patterned notches that aligned with the metal slides within the lock. The Bramah lock is still used and sold today (after finishing this article, take a moment on Google Images to search “Bramah lock” – you’ll see a wide range of old and new examples). In 1818, Jeremiah Chubb improved the design by adding a retaining spring that held back a tumbler when shifted by the turn of the wrong key; this prevented not only the bolt from being lifted but indicated that someone had tried to pick the lock; they were known as detector locks.
Over time, many more improvements and refinements followed, until today’s key styles are so varied that a comprehensive list would be lengthy – there are variations within categories of keys; some cars today no longer even require a key to start. But to adapt the old adage of “where there are horses there are horse thieves”, where there is a lock there will be a lock pick. Even keyless cars are not theft-proof.
How many keys do you use daily? How have key styles changed in your lifetime?
If you’re curious as to how to make a rubber band ball like this image, just click 
Stephanie Huesler 