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1 Cash - Jiajing Tongbao
| Issuer | Board of Revenue Mint / Board of Works Mint (Ming Dynasty) |
|---|---|
| Year | 1527-1563 |
| Type | Standard circulation coin |
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| Currency | Log in to see details |
| Composition | Log in to see details |
| Weight | Log in to see details |
| Diameter | Log in to see details |
| Thickness | Log in to see details |
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| In circulation to | Log in to see details |
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| Obverse description | Log in to see details |
|---|---|
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| Obverse lettering | Log in to see details |
| Reverse description | Plain, unadorned reverse featuring a central square hole (cash hole) bordered by a raised inner rim, surrounded by a flat, uninscribed field, and enclosed by a raised outer rim along the coin's periphery. No legends, symbols, or mint marks are present. The surface shows the characteristic texture of cast bronze production, consistent with Ming Dynasty manufacturing standards. |
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| Edge | Plain |
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| Additional information |
The Jiajing Emperor's reign produced one of the more administratively contentious coinages of the Ming period. Jiajing himself was famously indifferent to conventional governance, delegating heavily while pursuing Daoist ritual — yet his treasury demanded enormous output from both the Board of Revenue and Board of Works mints operating in parallel, each producing cash with subtle differences in casting quality and brass alloy consistency that specialists use to attribute pieces today.
Brass was formally adopted over bronze for Ming cash during this reign, a deliberate shift driven by copper supply constraints and the relative abundance of zinc from Yunnan smelting operations.