Materials and Features:

• High-Gloss Liquid Silver Base: High-density historical domestic tempered steel spring wire stock. The base material features an intense, mirror-bright chrome-plated surface with an ultra-reflective metallic luster that catches and reflects light seamlessly across a fluid, moving silhouette.

• Corrugated Helix Machine Architecture: Expertly engineered as a continuous single spring coil that flexes dynamically and snaps back instantly into its baseline shape under tension, providing a distinct three-dimensional ribbed texture and a premium weight that modern commercial beaded wires or hollow base metals cannot replicate.

• Silent Crotal Bell Extension Pull: The 3.75-inch extender assembly features flat-sided oval cable links terminating in a distinct, hollow four-hole open filigree ball drop charm, historically utilized as a functional weighted terminal to counter-balance the collarbone drape and prevent the necklace from shifting forward.

• Manual Bench-Plier Wrapped Closures: The terminal ends feature raw, exposed mechanical multi-loop wire knot closures hand-turned and crimped flat with heavy bench pliers to anchor the internal core tension safely away from the skin before the advent of modern mass-market solder caps.

Type: Top-drilled single spring coil drop dangle collar necklace configured for an adjustable extension fit with an unmarked under-1mm wire hook clasp.

Age/Origin: Circa 1950’s – 1960’s / Providence Rhode Island Jewelry District (Industrial Contract Works Tier)

Marks: Unsigned Factory Original (Attributed to Mid-Century Industrial Contract Sourcing based on signature hand-turned plier wire knots, generic 4-hole filigree ball counterweight charm, and unbranded wholesale-tier hardware kits).

Other: This necklace represents a stellar example of mid-century industrial technical metalwork mastery from the historic Providence jewelry hub. The piece features a highly tactile, flexible structure with an un-stamped, low-profile hook mechanism built for seamless adjustable wear. The metal components have successfully passed full structural and tension screening, showing a completely stable base matrix with zero structural warping, structural elasticity loss, or plating wear.

Measurements:

Weight: 31.0g

Dimensions: Coil Tube Length: 13.0" (Not including extender) | Extender Length: 3.75" | Total Drop Length: 16.75"

Thickness: 7.0mm diameter coil tube thickness profile | Under-1mm wire hook clasp

Condition: Excellent condition. The mirror-bright silver-tone chrome electroplating remains incredibly vibrant, uniform, and entirely free of surface clouding, pitting, or green oxidation. The high-gloss coiled helix is structurally immaculate, retaining a perfect, uniform spring-back tension. The flat-sided oval links and hollow 4-hole bell pull are firmly seated and completely secure with zero loose alignment or fracturing, remaining in immaculate condition.