Lanka : 11th Century
Gold Type III Kahavanu - Pious Fraud

These gold Plated copper Type III Kahavanu are known as Pious Frauds. Coins discovered in Temple Vaults, are sometimes gold plated copper coins, and reflects fraud of Jeweller who does not expect the deposited coins to be seen again in his lifetime. They are typically under weight. Being a millinium old contemporary forgeries, they are of significant collector interest.

SPECIFICATIONS
DenominationOne Kahavanu
Plate MetalGold 0.80
Plate AlloyCu/Ag 0.43
TypeCast
Diameter19.3 mm
Thickness2.1 mm
Weight Std.4.53 gms
Weight2.99 gms
DieAxis-30°
k3_jas_chank_rf_pau_obverse k3_jas_chank_rf_pau_reverse
Codrington 53;
DenominationOne Kahavanu
Core MetalGold 0.05
Core AlloyCu/Ag 52.
TypeCast
Diameter19.3 mm
Thickness2.3 mm
Weight Std.4.53 gms
Weight3.36 gms
DieAxis 60°
k3_jas_chank_rf_cu_obverse k3_jas_chank_rf_cu_reverse
Codrington 53;
Obverse : Standing figure Kuvera with head to right. Crown thick straight line with triangle in rear. In a Dhoti (garment) indicated by two curved lines on either side and one line in between longer than legs, standing on a lotus plant stalk with small circle in centre ending on left in a chank and on right in Jasmin flower as in hand. In left hand is an open Jasmine flower (pichcha mala) viewed from side. The right arm is extended with hand over a symbol (1b) consisting of a straight shaft with short cross pieces, ending in four prongs, which are thick. The head of the symbol is somewhat like the calices of two half-opened flowers, one being placed above the other. To right five annulet with dot in center (Target). A beaded circle along the periphery of the coin.
Reverse :A figure Bahirava, head right crown as on obverse Squatting upon asana, (a bed-like throne) represented by a short rectangular frame, divided lengthwise by a line and two cross lines (6 compartments). dhoti represented by bent line and small line in angle between the legs. The right arm is pendent over the right knee, which is drawn up; In left hand a chank. In field to right, Nagari legend in three lines :
1 2 3 4 5The anusvara over La.
SriLankaVibhu Vibhu is a title of Vishnu.
A beaded circle along the periphery of coin.

The surface composition measured by X-Ray Florecence (XRF), samples only the surface of the coin to a depth of under 0.01mm (10μm). In the case of coin-1 XRF measured the mostly intact gold plate. The surface composition is not reflected by the Specific Gravity estimatd to be SG7.5 is indicative of a copper core. In the case of coin-2 XRF measured the mostly the core as gold plate has almost rubbed off. The surface composition is now reflected by the Specific Gravity estimatd to be SG9.1 of the copper core.

The Pious Fraud Kahavanu were scanned at 600dpi and displayed at 300dpi. Coin-1 was obtained from Mr Ratnayaka, a collector in Katharagama, Lanka. Coin-2 was obtained from a dealer from Embilipitiya. Lanka.