Thai Sterling Silver Scalloped Earring Back by CW
Jewelry (Earring Component/Finding) · The piece bears the maker mark "CW". This likely represents a contemporary Thai jewelry manufacturer or exporter specializing in sterling silver findings and high-volume retail production.
Pattern: Standard Scalloped Butterfly Friction Back; non-specific collection, part of a functional jewelry line.

Type
Jewelry (Earring Component/Finding)
Maker
The piece bears the maker mark "CW". This likely represents a contemporary Thai jewelry manufacturer or exporter specializing in sterling silver findings and high-volume retail production.
Material
Sterling Silver (.925 purity). Composed of 92.5% pure silver alloyed with 7.5% copper for durability and tension.
Dimensions
Approximately 5mm in diameter. Weight is negligible, likely under 0.2 grams. Sized for a standard 20-gauge (0.8mm) earring post.
Description
A functional sterling silver friction earring nut, commonly referred to as a butterfly back. This component is essential for securing stud earrings. It features an attractive scalloped 'flower' rim and is double-stamped with its origin and purity. The bright silver finish and standardized sizing make it a universal replacement part for fine silver jewelry.
Key Features
Scalloped edge design, triple-stamped (Maker, Purity, Origin), and high-tension butterfly wings. The 'THAI' mark is a key indicator of the massive silver trade from that region.
Material & Composition
Sterling Silver (.925 purity). Composed of 92.5% pure silver alloyed with 7.5% copper for durability and tension.
Finish & Decoration
Bright-polished mirror finish. Functional scalloped edges (often called 'flower' style) facilitate grip for the wearer. High-shine surface with machine-stamped inscriptions.
Hallmarks & Stamps
'925' indicating sterling silver fineness; 'THAI' indicating country of origin (Thailand); 'CW' representing the specific maker or designer mark. Distinct machine-struck serif and sans-serif fonts.
Construction Details
Machine-stamped and die-cut from sterling silver sheet. The 'butterfly' design involves folded tension wings created through automated precision bending to ensure a friction fit.
Functional Features
Friction-fit mechanism designed to slide onto an earring post and lock into place via tension. Centered hole for post insertion with scalloped perimeter for ergonomic handling.
Handle & Grip Details
The scalloped outer edge acts as a grip for fingertips. Condition appears new with high tension in the spring-loaded wings.
Craftsmanship Details
Machine-manufactured for consistency and high-speed production. Higher quality than 'no-name' findings due to the inclusion of a specific maker's mark (CW) and origin stamp.
Authentication Indicators
Hallmarks are consistent with standard Thai export regulations. Purity mark '925' and 'THAI' origin mark are standard for international trade. The hallmark depth and font style match contemporary machine-made standards.
Origin & Manufacturing
Thailand. Produced in a modern industrial jewelry workshop; Thailand is a leading global exporter of sterling silver findings and finished jewelry.
Era & Period
Modern/Contemporary (late 20th century to present). Typical of the mass-market silver jewelry boom from Southeast Asian manufacturing hubs.
Age Estimate
Circa 2000-present. The crispness of the laser or machine stamping suggests recent production.
Cultural Significance
Represents the globalization of the jewelry trade, where findings are manufactured in specialized hubs like Thailand and exported to be paired with gemstones or designs worldwide.
Condition Notes
Excellent/Mint. No visible tarnish, scratches, or loss of tension. The edges are sharp and the stamping is clear.
Value Estimate
$1.00 - $5.00 USD if sold individually; usually sold in bulk pairs for professional use. Value is based on silver weight and utility rather than antique rarity.
Care & Maintenance
Clean with a soft silver polishing cloth. Avoid liquid dips which can get trapped in the butterfly folds. Store in a dry, airtight container to prevent tarnish between the wings.
Similar Pieces
Generic 'Earnuts' or 'Bullet Backs'. Alternatives include 14K gold versions or silicone-filled 'Comfort Backs'. Differences lie in the metal purity and the specific decorative scalloping.
Interesting Facts
Thailand has been the world's largest exporter of silver jewelry for several decades, particularly known for 'Northern Silver' traditions that evolved into massive modern industrial outputs.