Materials and Features:

• Premium Translucent Cherry Rhodoid Matrix: High-grade industrial cellulose acetate compound formulated by G. Convert SA with an optical-grade translucent cherry base. The specialized polymer offers an ultra-light material-to-volume mass ratio that delivers an authentic glass-marble acoustic "clank" when worn.

• Suspension-Blended Pearlescent Milky Swirling: Embedded with floating, multi-layered milky white pearlescent filaments utilizing ground mica/guanine crystals. The marbled suspension is distributed organically throughout the thick cross-section, creating three-dimensional visual depth that shifts light through the translucent substrate.

• Graduated Convex Dome Geometry: Engineered with a specialized mid-century mold profile featuring sharp outer comfort rims that graduate cleanly into a prominent central dome apex. This architectural taper maximizes the structural refraction of the pearlescent pattern.

• Hand-Finished High-Sheen Surface: The entire exterior face has been hand-buffed and polished using fine vintage workshop abrasives, resulting in a glass-smooth, mirror-bright reflective sheen that amplifies the deep cherry colorway without topical varnishes.

Type: Continuous solid-loop cylindrical fashion bangle bracelet designed to slip over the hand.

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

Marks: Unsigned Factory Original (Verified via the distinct 35.4g material density metric, characteristic wide-format domed template, and signature two-part mechanical injection mold assembly footprint).

Other: This exceptional specimen represents a premium example of post-war European technical mastery within the historic Oyonnax plastics cluster. The piece features a distinct dual-point factory seam layout: a superficial outer surface trace line on one side, paired with a deep through-fuse line and outer side-wall offset exactly 180 degrees across from it on the reverse wall, a forensic signature of a G. Convert SA two-part industrial injection die cavity. The bracelet has successfully passed strict structural screening, showing a negative reaction to Simichrome chemical testing and producing zero phenolic or camphor odors under localized thermal testing, confirming an immaculate, non-degraded cellulose acetate structure.

Measurements:

• Weight: 35.4g (Exhibits the classic lightweight density characteristic of authentic vintage European Rhodoid)

• Dimensions: Width: 1.25" Wide (31.75mm) | Cross-Sectional Thickness: 5mm Center tapering down to 2mm Edges | Inside Opening Diameter: 2.625" (Standard comfortable vintage fit)

Condition: Excellent vintage condition. The translucent cherry body and pearlescent milky white swirls remain exceptionally vibrant, crisp, and completely free of internal material clouding or UV-induced yellowing. The high-gloss exterior surface is structurally immaculate, displaying only faint micro-scratches consistent with gentle, archival storage and age. The interior wall is completely smooth, lacking any deep gouges, material loss, or stress fracture lines. The dual injection-molding factory seams remain entirely stable, rigid, and factory-tight with zero signs of structural separation or chemical warping.