Unmarked Rectangular Gold-Tone Plaque
Pendant or Decorative Fragment · Yellow Gold Alloy (Probable Brass or Copper base)
Purity: Indeterminate / Potential Plated or Low-Karat Alloy

Type
Pendant or Decorative Fragment
Purity
Indeterminate / Potential Plated or Low-Karat Alloy
Gold Type
Yellow Gold Alloy (Probable Brass or Copper base)
Weight
5 to 10 grams (estimated based on size and thickness)
Description
A flat, rectangular metal piece with a golden hue. The item lacks the high-luster finish associated with high-karat gold and displays surface scratches consistent with use as a decorative plate or a component of a larger accessory.
Key Features
Rectangular geometry, absence of identifying mint marks, and significant surface wear and 'edge-bite' on the lower-left corner.
Color & Finish
Dull yellow with a matte, scratched surface finish and localized oxidation
Hallmarks & Stamps
None visible on the front or edges; potential markings on reverse side (not pictured)
Dimensions Estimate
Approximately 25mm x 18mm x 2mm
Gemstones & Inlays
None; plain metallic surface
Clasp & Closure
Not applicable; no visible attachment point or bail
Chain & Links
None present; flat rectangular profile
Craftsmanship Details
Simple stamped or cast construction with minimal finishing; edges appear somewhat sharp and industrial.
Authentication Indicators
Red flags: The greenish-brown tint and irregular surface wear may indicate a base metal composition (like brass) rather than solid 24K or 22K gold. Professional XRF testing is highly recommended.
Origin & Maker
Unknown Workshop; likely mass-produced
Era & Period
Modern / Contemporary Industrial
Age Estimate
Likely manufactured within the last 20-30 years
Cultural Significance
Utility-focused; minimal historical or ceremonial value unless proven to be a bullion piece.
Condition Notes
Fair; visible scratching, small chip/indentation at the bottom left, and uneven coloration suggesting wear to a surface coating.
Value Estimate
Melt value of base metal ($0.05 - $0.50) unless verified as solid gold by an acid or XRF test.
Care & Maintenance
Gently clean with a microfiber cloth; avoid acidic cleaners which may damage the surface plating if it is not solid gold.
Similar Items
10g Gold Investment Bars (e.g., Credit Suisse), though those typically feature deep-struck serial numbers and assay marks.
Interesting Facts
Items in this shape are often used as testing blanks or base plates for personalized engravings.