Low-Purity Yellow Gold Tie Tack or Lapel Pin Backing
Clutch / Lapel Pin Backing · Yellow Gold Alloy
Purity: Indeterminate; potentially 10K (41.7% gold) or gold-filled/plated base metal
Type
Clutch / Lapel Pin Backing
Purity
Indeterminate; potentially 10K (41.7% gold) or gold-filled/plated base metal
Gold Type
Yellow Gold Alloy
Weight
0.5g to 1.2g
Description
A standard circular gold-toned jewelry component used as a backing for a lapel pin or tie tack. It features a raised hexagonal or rounded center mechanism designed to grip a sharp metal post. The surface shows signs of age and handling, with a muted gold luster characteristic of low-karat alloys or thick plating.
Key Features
Friction-fit internal spring mechanism and a wide-flange circular base for stability against fabric
Color & Finish
Dull yellow with a matte, slightly oxidized finish and aged patina
Hallmarks & Stamps
No visible stamps on exterior; typical markings for these items (e.g., '1/20 12KGF') are usually on the underside or inner mechanism
Dimensions Estimate
Diameter of approximately 8mm to 10mm
Gemstones & Inlays
None; purely functional hardware component
Clasp & Closure
Butterfly clutch or squeeze-style friction clutch for a pin post
Chain & Links
Not applicable; single solid-piece construction
Craftsmanship Details
Industrial stamped and machine-assembled component with functional focus over aesthetic refinement
Authentication Indicators
Color suggests a high copper or brass content likely associated with gold-filling or lower karat alloys; lack of crisp hallmarks is a common red flag for solid high-purity gold
Origin & Maker
Mass-produced jewelry findings; likely manufactured in USA or East Asia
Era & Period
Late 20th Century (1970s–1990s) utilitarian design
Age Estimate
Circa 1975–2000 based on standard industrial jewelry design
Cultural Significance
Represents the ubiquity of professional and ceremonial accessorizing in corporate and military dress codes
Condition Notes
Fair to Good; significant surface oxidation and dulling of the original finish
Value Estimate
Primarily utilitarian/scrap value; approximately $2–$15 depending on metal verification (Gold vs Base Metal)
Care & Maintenance
Mild soapy water cleaning; avoid aggressive polishing which may strip plating if not solid gold
Similar Items
Screw-back fasteners, magnetic pin backs, and safety-pin style brooches
Interesting Facts
The 'butterfly' clutch design became the industry standard for military insignia and corporate pins during the mid-20th century, replacing the more expensive screw-back styles.