Truly a one-of-a-kind wearable piece of optical art! This stunning vintage 1991 working miniature kaleidoscope pendant necklace features incredible artisan bench craftsmanship. The central barrel is meticulously detailed with an organic, brutalist-inspired drip-wax texture accented by custom raised metallic details. Artist's hand-engraved script reading "Coley" and dated "91" directly on the central neck of the pendant cylinder. Pendant features a functional, clear interior view with a fluidly pivoting swivel dog clip watch clasp. Chain Included: Comes on a beautiful, sturdy 29-inch fluid Italian rope chain stamped "925" and "Italy". Excellent vintage condition. Naturally occurring silver oxidation gives the textured grooves wonderful, high-contrast depth. The internal components move dynamically. A spectacular statement piece for vintage jewelry lovers, novelty collectors, or kaleidoscope enthusiasts alike!