Qianlong Tongbao Cash Coin
Country of Origin: China, Qing Dynasty
Year of Issue: 1735-1796
Denomination: 1 Cash (Wen)
Composition: Brass (typically copper, zinc, and lead)
Brief Description
A circular cast brass coin with a square center hole, featuring Chinese characters on the obverse and Manchu script on the reverse.
Historical Significance
Issued during the reign of the Qianlong Emperor, this period marked a height of Qing power and prosperity. These coins were used in daily commerce across the empire.
Estimated Value
$1-$10 for common varieties; rare mints or mother coins can exceed $100.
Care Instructions
Store in a PVC-free holder. Do not attempt to scrub off the patina, as it protects the metal and confirms age.
Mint Mark
Boo-Chiowan (Board of Revenue, Beijing)
Mintage & Rarity
Common; billions were cast, though specific calligraphy variants can be scarce.
Weight & Diameter
Approx. 3.5 - 5.0 grams, 24-25 mm (varies by casting)
Edge
Plain
Apparent Grade
Very Fine (VF); showing moderate wear but clear characters and a stable patina.
Obverse (Front)
Four Chinese characters read top-to-bottom, right-to-left: Qian Long Tong Bao (Currency of the Qianlong period).
Reverse (Back)
Two Manchu characters; left: 'Boo' (Source), right: 'Chiowan' (Board of Revenue Mint).
What Drives This Coin's Value
Mint location, weight/size (large 'large' cash are better), and calligraphy style variants.
Similar Coins
Coins of other Qing emperors like Kangxi or Jiaqing; they are distinguished by the top and bottom characters on the obverse.
Authenticity & Counterfeit Red Flags
Look for crisp character edges and natural wear. Modern fakes often have 'sand-blasted' textures or chemical patinas that look powdery/blue.
Notable Varieties & Errors
Shan-lung (Mountain-Qian) variants and coins with specific dots/crescents on the reverse.
Created At: 2026-06-03T22:08:08.383629