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Bukhara
Kai Yuan Tong Bao
安國
開元通寶
Item number: A3508
Year: AD 659-709
Material: Bronze
Size: 22.6 x 22.3 x 1.3 mm
Weight: 3.2 g
Manufactured by: Bukhara Mint
Provenance: Stephen Album Rare Coins 2025
This coin is believed to have been cast in the kingdom of An, located in the Transoxiana region.
Its form follows the traditional style of the Chinese cultural sphere, namely the round coin with a central square hole. The obverse bears the inscription “Kaiyuan tongbao” in a script combining clerical and seal forms, to be read from top to bottom, right to left. The calligraphy imitates the style of the early Tang period, though the characters are blurred. A corroded dot appears on the lower left side of the character “Kai”, though it is unclear whether this was intentionally engraved by the artisan.
Beneath the square hole, there appears to be a symbol, though the worn state of the coin renders it difficult to identify. In general, coins minted by the Sogdians in Transoxiana bore clan emblems (Old Turkic: 𐱃𐰢𐰍𐰀, tamga) on the field. Some of these emblems are said to have derived from simplified forms of the suspended-needle style characters found on Wang Mang’s “Huoquan” coins, possibly because the Wang Mang era marked the period when Chinese coinage types first spread widely to Central Asia. Other scholars suggest that these symbols may have originated from Zoroastrian or Nestorian motifs. In later issues, the coin fields occasionally contained Sogdian inscriptions denoting royal names or titles.
The kingdom of An was one of the Sogdian city-states, situated in the western part of Transoxiana (modern-day southwestern Uzbekistan). In the Tang period it was regarded as one of the “Nine Surnames of Zhaowu” or “Nine Surnames of the Hu”. Its people often adopted the state name “An” as their surname when travelling in Chinese territory, the most famous example being An Lushan. Despite the name “Nine Surnames”, these were neither limited to nine polities nor constituted by a single ethnic group. The origins of the Sogdians can likely be traced back to remnants of the Da Yuezhi, who, after being defeated by the Xiongnu, gradually merged with surrounding peoples such as the Turks.
In AD 630, during the fourth year of Emperor Taizong’s Zhenguan reign, the Tang generals Li Jing and Li Ji destroyed the Eastern Turkic Khaganate, thus extending Tang influence into Central Asia. In AD 638, An sent its first tribute mission to the Tang court. In AD 659, during Emperor Gaozong’s reign, the Tang defeated the Western Turkic Khaganate and brought the Zhaowu Nine Surnames under their loose control, appointing the ruler of An as Prefect of Anxi Province, subordinated to the Anxi Protectorate General. Benefiting from their geographical position and commercial expertise, the Sogdians acted as intermediaries along the Silk Road, establishing communities in Chang’an, Luoyang, and other Chinese cities, and gradually obtaining positions within the Tang military and administrative systems.
In AD 709, during the third year of Emperor Zhongzong’s Jinglong reign, Qutayba ibn Muslim, general of the Umayyad Caliphate (then known as the “White-clothed Arabs”) and governor of Khurasan, conquered An’s capital, Bukhara (known in Chinese sources as Buhe), bringing an end to the kingdom.