Jewelry counter that hides valuables safely - GIF

Jewelry counter that hides valuables safely.

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Previously:

Anti-theft fog system for jewelry stores - GIF
Jewelry from flatware - GIF
Jewelry metal comparison - photo
Jewelry store window display sparkling light - GIF
Making bone jewelry - GIF

Needs to drop down faster, and have razor sharp steel all the way around, like a guillotine, to foil the smash and grab types, like those 17 youths who hit that jewelry store in CA a few weeks ago, and pistol whipped the 80 year old owner.