Lock’d In by Bryan Turner at Grave Raven

I recently acquired this puzzle lock in a trade and was pleasantly surprised by it (I hadn’t seen this type of lock mechanism before). There’s a nice fit and finish that certainly gives this lock an appealing look and feel.

Here’s the description from Cubicdissection:

“Lock'd In is Bryan's first puzzle lock, and it's unlike any other puzzle lock design. They are precision machined to incredibly tight tolerances from solid material at his home workshop. He describes the puzzle thus:

"How does one open a lock that has no key-hole? There are no buttons, no tools, and no magnets either... You'll have to rely on your keen senses to feel and hear the hidden parts inside!"