Tang Dynasty China (618-907 AD) - Lot of 9 Kai Yuan Tong Bao (開元通寳) Bronze Cash Coins, Circulated

9 x cast bronze cash coins. Tang Dynasty, 618-907 AD. "Kai Yuan Tong Bao" (Open/New Era Currency) type. Square hole. Approx. 24-25mm. Various patinas. Circulated.


Description

A lot of nine cast bronze cash coins from the Tang Dynasty of China (618-907 AD). All are of the Kai Yuan Tong Bao (開元通寳) type, first introduced in 621 AD and issued continuously throughout the dynasty's approximately 300-year span. Each coin features the four-character inscription arranged around the central square hole in the traditional top-bottom-right-left reading order; the square hole allowed coins to be strung together on cords for commerce. The coins are approximately 24-25mm in diameter, consistent with standard single-cash denomination pieces. The lot displays a pleasing variety of natural patinas developed over 1,100+ years: several show green/turquoise verdigris on a dark bronze base, others display chocolate brown to near-black toning, and some exhibit traces of earthen encrustation suggesting ground burial. Condition ranges from fair to fine across the nine pieces; better specimens retain legible calligraphy and clear rims while more corroded examples are suitable as space fillers. Vendor advises these are genuine Tang Dynasty pieces. Specialist authentication is recommended prior to any significant purchase.


Specifications

Country: China (Tang Dynasty)

Period: 618-907 AD

Type: Kai Yuan Tong Bao (開元通寳) bronze cash coin

Quantity: 9 coins

Composition: Cast bronze (copper alloy)

Diameter: Approx. 24-25 mm

Weight: Approx. 2.5-4 grams each

Grade range: Fair to Fine (circulated, age-appropriate wear)

Toning: Natural green/brown verdigris patina, some with earthen encrustation

584628+3

Location of item: 18 Paradise Road, Acacia Ridge, QLD, Australia

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