Sumatra Bank Commemorative Fantasy Bullion Bar
Decorative Object / Novelty Bullion · Unknown / Unofficial Workshop. Marked with 'BANK SUMATRA', though likely not produced by a legitimate central bank or recognized mint.
Pattern: Faux-Ancient Imperial Style Treasure Bar
Type
Decorative Object / Novelty Bullion
Maker
Unknown / Unofficial Workshop. Marked with 'BANK SUMATRA', though likely not produced by a legitimate central bank or recognized mint.
Material
Likely Brass or Copper Alloy base with a 'Vermeil' style gold-tone / bronze finish. There is no evidence of Sterling Silver or Fine Gold; the surface shows heavy oxidation and 'pitting' inconsistent with precious metals.
Dimensions
Estimated at 15cm for the long bar and 8cm for the short bar. Weight cannot be determined but the density of the core visible in the inset suggests a base metal like brass rather than the high density of solid gold or silver.
Description
These bars are novelty decorative objects meant to simulate gold bullion from a Sumatran bank. They feature raised five-pointed stars and a stamped serial number. Despite the 'AU' chemical symbol, the visual indicators—including the core color shown in the cut section—suggest they are not made of precious metals but are curiosity pieces.
Key Features
Bold relief-cast stars, chemical 'AU' symbol, 'Bank Sumatra' text, and a simulated rustic, hammered finish.
Material & Composition
Likely Brass or Copper Alloy base with a 'Vermeil' style gold-tone / bronze finish. There is no evidence of Sterling Silver or Fine Gold; the surface shows heavy oxidation and 'pitting' inconsistent with precious metals.
Finish & Decoration
Antiqued bronze / faux-gold finish with cast-in high relief stars, a circular seal containing 'AU' (the chemical symbol for gold), and a serial number plate '041084'. The surface is artificially aged with dark patination in the crevices.
Hallmarks & Stamps
The bars bear a circular stamp 'BANK SUMATRA AMM... NUI.' and a central 'AU'. There are no official purity hallmarks (like .925, .999, or a lion passant) or recognized assay marks, which are required for legitimate bullion.
Construction Details
Crude industrial casting. The edges show filing marks and the inset image reveals a grainy, yellowish-brown core consistent with non-precious casting metals rather than the white core of silver or the bright yellow of high-karat gold.
Functional Features
None; designed as a decorative paperweight or novelty 'treasure' item.
Handle & Grip Details
N/A
Craftsmanship Details
Low-quality sand or investment casting. Notice the 'pitted' surface texture and the lack of sharp, clean lines in the lettering which would be present in genuine minted bullion.
Authentication Indicators
RED FLAGS: Lack of official assay marks, incorrect core color in the cutaway, 'AU' being part of the cast mold rather than a struck stamp, and the lack of a Weight (g/oz) stamp which is mandatory for real bullion.
Origin & Manufacturing
Likely Southeast Asia (Indonesia/Sumatra region) given the text, though these are frequently sold as tourist souvenirs or props.
Era & Period
Contemporary (late 20th to 21st century) novelty items made to look like 'lost treasure' or ancient central bank reserves.
Age Estimate
Modern era (last 20-30 years). The wear is simulated through artificial oxidation techniques rather than genuine age.
Cultural Significance
Represents the 'Lost Gold' folklore prevalent in Indonesian and Philippine history, often appearing in novelty markets or as cinematic props.
Condition Notes
Poor (as bullion). The finish is peeling and rubbed off, revealing a base metal core. There is heavy artificial tarnish and uneven casting texture.
Value Estimate
$10 - $50 USD as a novelty decorative item or paperweight. These have no intrinsic precious metal melt value.
Care & Maintenance
Clean with a dry cloth only. Do not use silver or gold polish as it will likely remove the thin gold-tone surface plating and reveal the dull base metal beneath.
Similar Pieces
PAMP Suisse or Credit Suisse gold bars (the real versions look machined/struck with high precision), or brass movie prop bars.
Interesting Facts
Items like these are often part of 'treasure scams' or 'black gold' urban legends in Southeast Asia, where brass objects are sold as hidden WWII or imperial gold reserves.