Southeast Asian Burmese 'Tiger Tongue' Lat Silver Ingot
Coin/Bullion (Primitive Money) · Native tribal artisans and local casters from the Lan Xang/Burmese dynasties; no specific brand name is applicable as these were utilitarian trade currency.
Pattern: Tiger Tongue (Lat) Money, recognized by its elongated tapered shape and surface 'buds' or 'stings'.
Type
Coin/Bullion (Primitive Money)
Maker
Native tribal artisans and local casters from the Lan Xang/Burmese dynasties; no specific brand name is applicable as these were utilitarian trade currency.
Material
Low to mid-grade Silver alloy, typically ranging from 50% to 80% purity, often containing significant copper or base metal impurities resulting in heavy dark oxidation.
Dimensions
Approximately 10-12 cm in length; weight varies by denomination but usually ranges between 50g and 110g (approx. 3-4 troy ounces).
Description
An authentic example of Tiger Tongue money, this silver ingot represents a fascinating intersection of numismatics and silver craft. Unlike European flatware, this piece was designed as a store of value. Its dark, encrusted patina suggests long-term burial or neglect, characteristic of hoard finds in Southeast Asia. The surface features the sought-after 'stings' that collectors look for to verify authentic casting conditions.
Key Features
Elongated rectangular form, tapered ends, bubble-like surface texture (stings), and massive solid-metal weight.
Material & Composition
Low to mid-grade Silver alloy, typically ranging from 50% to 80% purity, often containing significant copper or base metal impurities resulting in heavy dark oxidation.
Finish & Decoration
Crude, unpolished finish with characteristic 'stings' (cooling blisters) on the upper surface caused by rapid air cooling during the casting process; dark, heavy tarnish/patina.
Hallmarks & Stamps
Typically unstamped, though some rare specimens feature small punched floral or wheel marks; this specific piece appears to lack formal hallmarks, which is common.
Construction Details
Sand-cast or open-mold cast using a 'poured' method where the cooling silver creates natural surface textures; hand-finished with basic tools.
Functional Features
Used as primitive currency for high-value trade; the elongated shape allowed for easy transport in sashes or pouches.
Handle & Grip Details
Integrated solid form with a wider 'tongue' end and a slightly tapered 'tail' end; solid cast throughout.
Craftsmanship Details
Primitive open-mold casting; evidence of hand-pouring and natural atmospheric cooling rather than industrial refined techniques.
Authentication Indicators
Irregular cooling bubbles (stings) are difficult to replicate via modern casting; the weight-to-volume ratio and specific 'river-find' patina are consistent with original specimens.
Origin & Manufacturing
Southeast Asia, likely the Lan Xang Kingdom (modern-day Laos/Thailand) or Burma (Myanmar).
Era & Period
Late Ayutthaya to Early Rattanakosin period (approx. 16th to 19th Century) context, specifically used in the Mekong River region and Myanmar.
Age Estimate
Circa 1750–1850 based on the heavy oxidation, wear patterns, and casting style.
Cultural Significance
A vital artifact of the Lan Xang kingdom's economy, serving as a Bridge between bartering and modern coinage in Southeast Asian trade history.
Condition Notes
Poor to Fair; significant environmental corrosion, heavy sulfide deposits, and surface pitting. The silver appears significantly debased (low fineness) due to the red-brown oxidation visible.
Value Estimate
A piece in this heavily oxidized condition is valued between $150–$350 USD to a specialist collector; higher silver purity specimens fetch $600+.
Care & Maintenance
Do not aggressively polish; the value lies entirely in the historical patina. If cleaning is necessary, use only warm distilled water and a soft cloth; keep in a dry, humidity-controlled environment to prevent further corrosion of base metal impurities.
Similar Pieces
'Bullet' Money (Pod Duang) from Siam; these are spherical rather than elongated and generally higher silver purity.
Interesting Facts
The name 'Tiger Tongue' comes from the rough, sandpaper-like texture of the cooling silver, which locals compared to a feline's tongue. These was used primarily for purchasing bulk goods, land, or slaves.