Generic Gold-Plated or Low-Purity Decorative Medal/Blank
Medal/Token Blank · Yellow Gold (surface appearance) with visible base metal or heavy oxidation
Purity: Indeterminate; suspected gold-plated (Vermeil) or low-karat alloy (under 10K)
Type
Medal/Token Blank
Purity
Indeterminate; suspected gold-plated (Vermeil) or low-karat alloy (under 10K)
Gold Type
Yellow Gold (surface appearance) with visible base metal or heavy oxidation
Weight
5 to 10 grams depending on base metal composition
Description
A circular metallic object featuring a raised outer rim. The surface exhibits a yellowish-gold tone that has been significantly compromised by environmental exposure, resulting in a dark blue and iridescent tarnish usually associated with silver-based alloys (Vermeil) or base metal impurities.
Key Features
Raised outer protective rim, flat circular field, prominent concentric and linear abrasions, and distinct chemical patination.
Color & Finish
Dull yellow metallic hue with significant blue/black oxidation, surface scratches, and a matte, worn patina
Hallmarks & Stamps
None visible; edge and reverse obscured by heavy wear and surface corrosion
Dimensions Estimate
Approx. 25-30mm diameter, standard medal/large coin size
Gemstones & Inlays
None; plain metallic surface
Clasp & Closure
N/A (circular object)
Chain & Links
N/A; plain reeded-style or flat raised rim
Craftsmanship Details
Simple stamped construction with a standard raised border for stacking or protection of a (now missing or worn) central design.
Authentication Indicators
Red flags: The presence of blue/black tarnish is inconsistent with high-purity gold (22K-24K), which does not oxidize. This reaction suggests a silver or copper base with thin gold plating.
Origin & Maker
Unknown; likely a mass-produced promotional or decorative blank
Era & Period
Contemporary (late 20th century to present) utility or souvenir piece
Age Estimate
Approx. 10-30 years based on surface oxidation and scratch patterns
Cultural Significance
Represents the common use of gold-toned materials in commemorative and award items to symbolize value despite low intrinsic precious metal content.
Condition Notes
Poor to Fair; significant surface scratching, heavy oxidation/tarnish, and potential pitting of the metal surface.
Value Estimate
Likely nominal or melt value of the base metal; if silver-based, roughly $5-$10 USD. As gold, negligible unless confirmed solid by XRF.
Care & Maintenance
Clean with a soft jewelry cloth; avoid acid-based cleaners which will strip the remaining thin gold layer. Professional ultrasonic cleaning may be too abrasive for this level of surface damage.
Similar Items
Gold-plated brass tokens, 925 Sterling Silver gilt (Vermeil) medals, or low-purity 9K gold discs.
Interesting Facts
Gold itself is chemically inert and does not tarnish; however, when alloyed with silver or copper, the reactive metals can migrate to the surface or react through thin plating to create the colors seen here.