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

Unmarked Rectangular Gold-Tone Plaque

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.

Identified on 4/2/2026