Vintage NOS 1960's 18K Goldstone Venturina Spinner Charm (6mm or 7mm)

Acquired from a jeweler's estate
Vintage NOS (new old stock) item in excellent condition
Crafted of 18 karat yellow gold, not marked but has been tested for gold content
Features either a 6mm or 7mm Goldstone Venturina bead which spins around the circle pendant
Measures 0.62" (15.6mm) top to bottom, including bail