Replica Sumatra Gold Bullion Cast Bars
Bar/Ingot (Brass-based Decorative Replica) · Brass alloy with an applied artificial patina; not gold.
Purity: Non-precious (0K/0%). These items exhibit surface characteristics of brass or bronze with an aged patina rather than solid gold.
Type
Bar/Ingot (Brass-based Decorative Replica)
Purity
Non-precious (0K/0%). These items exhibit surface characteristics of brass or bronze with an aged patina rather than solid gold.
Gold Type
Brass alloy with an applied artificial patina; not gold.
Weight
Estimated at 500-1000g each based on size, though significantly lower density than if they were solid gold.
Description
These are novelty cast bars modeled after Indonesian bank ingots. They utilize a distinct 'aged' aesthetic with high-relief stamps including stars and the chemical symbol for gold (AU). The surface bears a mottled yellow-brown color intended to look historical, though the physical texture is characteristic of modern sand-cast brass figurines rather than high-value bullion.
Key Features
Prominent high-relief 'AU' stamp; weathered/distressed finish; five-star decorative layout; serial number for faux-authenticity.
Color & Finish
Antique bronze tone with artificial blackening/oxidization in recessed areas; pockmarked and uneven surface finish.
Hallmarks & Stamps
Circled 'AU' seal with 'BANK SUMATRAMAMK' text; five-pointed star array; serial number 040874; 99.9 purity mark on side.
Dimensions Estimate
Large bar: 15cm x 5cm x 3cm; Small bar: 8cm x 5cm x 3cm. Sold as oversized desk ornaments.
Gemstones & Inlays
None. The items feature cast-in relief elements including stars and alphanumeric characters.
Clasp & Closure
Not applicable. These are solid cast rectangular bars.
Chain & Links
Not applicable; cast trapezoidal block construction.
Craftsmanship Details
Crude sand-casting method indicated by surface porosity and 'flashing' on edges. Stamps were part of the mold rather than being struck into cold metal.
Authentication Indicators
RED FLAGS: Surface texture is pitted and grainy (unlike refined gold); 'gold' color is dull and greenish; stamps are crude rather than precision-pressed. These fail visual inspection for gold bullion instantly.
Origin & Maker
Likely Southeast Asian (Indonesia) novelty manufacturer; non-official production.
Era & Period
Contemporary (Modern Reproductions). Designed to mimic 'Old World' colonial treasure or fantasy loot.
Age Estimate
Modern (1-10 years). The aging is artificial and the casting methods are contemporary mass-production.
Cultural Significance
Modern folk objects representing the aspiration of wealth; loosely based on the historical prestige of Sumatran gold (the 'Island of Gold').
Condition Notes
Poor (as bullion) to Good (as decorative pieces). Visible casting pits, uneven surface coloring, and 'brassing' where the top layer has worn.
Value Estimate
$10 - $30 USD as decorative novelty items. Melt value is negligible (scrap brass/zinc).
Care & Maintenance
Wipe with a dry cloth. Avoid metal polish as it will remove the artificial dark patina in the recesses that gives it the 'antique' look.
Similar Items
Brass paperweights, theatrical prop gold, or genuine 1kg PAMP gold bars (which would be highly polished and precision-struck).
Interesting Facts
Items like these are often sold in Southeast Asian markets as souvenirs or 'good luck charms' representing wealth; they are also unfortunately used in 'found gold' scams.