Materials and Features:

• Premium Translucent Caramel Rhodoid Matrix: High-density historical French cellulose acetate formulation yielding a rich, warm brownish-orange translucent coloration that captures and glows under directed light. The specialized compound features an ultra-light mass-to-volume ratio, producing a distinct, musical glass-marble acoustic ring when worn.

• Seamless High-Dome Architecture: An exceptionally thick 8mm continuous convex dome profile engineered completely free of lateral or vertical mold split lines. This smooth, unbroken outer configuration allows maximum light transmission and internal refraction through the translucent amber-caramel core.

• Tri-Point Internal Fingerprints: The interior comfort wall preserves three distinct, evenly spaced circular cratered factory marks. These mechanical indentations are diagnostic signatures left behind when steel ejector pins physically pushed the hot polymer loop out of its seamless compression die cavity.

• Authenticating "Cold Slug" Flow Landmark: Features a highly localized, superficial surface layer structural texturing imperfection on one flank caused during the historical manufacturing cooling cycle. This microscopic "skin crinkle" or flow mar occurs naturally when the first layer of hot polymer touches a slightly cooler mold surface, providing absolute physical proof of its mid-century chemical lineage.

Type: Seamless continuous high-dome fashion bangle bracelet engineered as a slip-on solid loop.

Age/Origin: Circa 1950’s / Oyonnax, France (G. Convert SA Chemical Works)

Marks: Unsigned Factory Original (Verified via the distinct 32g mass metric, unique 8mm seamless dome depth, and signature tri-point internal mechanical factory footprints).

Other: Successfully passed rigorous archival verification screenings, showing a negative chemical reaction to Simichrome testing and generating zero phenolic or camphor odors under localized thermal testing, confirming a non-degraded, stable mid-century cellulose polymer structure.

Measurements:

• Weight: 32.0g

• Dimensions: Width: 0.75" Wide (19.05mm) | Cross-Sectional Thickness: 8mm High Dome Apex | Inside Opening Diameter: 2.625" (Standard comfortable vintage fit)

Condition: Excellent vintage condition showing clear signs of gentle historic wear. The high-gloss sheen remains beautifully uniform across the entire perimeter of the bangle. No major flaws or deep scratches are present, though faint micro-wear is visible upon close inspection, consistent with a used piece that has been worn and loved. The piece is entirely free of chips, cracks, or structural losses. A localized "cold slug" flow mark is present on the flank, which can barely be seen or felt; this is an authentic manufacturing cooling artifact consistent with mid-century polymer cooling and adds directly to the historical verification of the bracelet.