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1 Mon "Gankubi-sen"
| Issuer | Japan (private/unofficial) |
|---|---|
| Year | 1101-1636 |
| Type | Log in to see details |
| Value | Log in to see details |
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| Composition | Log in to see details |
| Weight | Log in to see details |
| Diameter | Log in to see details |
| Thickness | Log in to see details |
| Shape | Log in to see details |
| Technique | Hammered (Hammered from a pipe bowl) |
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| Engraver(s) | Log in to see details |
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| Obverse description | Entirely blank field with a raised encircling rim, characteristic of the gankubi-sen type. The central hole, pierced through the body of a tobacco pipe bowl (gankubi) rather than cast in the conventional manner, is irregular and slightly off-centre in profile. No inscription, device, or decorative element is present on this face. The surface shows a coarse, porous texture consistent with the crude hammering technique employed by unofficial producers. |
|---|---|
| Obverse script | Log in to see details |
| Obverse lettering | Log in to see details |
| Reverse description | Entirely blank field lacking any raised rim, distinguishing it from the obverse and confirming the characteristic two-sided asymmetry of gankubi-sen forgeries. The central hole mirrors the irregular, non-square aperture of the obverse, reflecting the pipe-bowl perforation method. The surface is rough and uneven, with no inscription, legend, or decorative motif. The absence of a rim on this face is a defining diagnostic feature of this class of contemporary counterfeit mon coinage. |
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| Edge | Log in to see details |
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| Mintage | ND (1101-1636) |
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