| 発行体 | Sendai Domain |
|---|---|
| 年号 | 1784 |
| 種類 | Coin pattern |
| 額面 | 1 Mon |
| 通貨 | Mon (1784-1863) |
| 材質 | Copper (Copper alloy) |
| 重量 | |
| 直径 | |
| 厚さ | |
| 形状 | Square with rounded corners (With a square hole) |
| 製造技法 | Cast |
| 向き | |
| 彫刻師 | |
| 流通終了年 | |
| 参考文献 |
| 表面の説明 | Four characters around center hole |
|---|---|
| 表面の文字体系 | |
| 表面の銘文 |
仙 寶 通 臺 (Translation: Sendai Currency) |
| 裏面の説明 | Blank. |
| 裏面の文字体系 | |
| 裏面の銘文 | |
| 縁 | |
| 鋳造所 | |
| 鋳造数 |
ND (1784) - - |
| Numisquare ID | 1086945140 |
| 追加情報 |
Historical Context: Issued in 1784, this 1 Mon 'Sendai-tsūhō' Bosen falls within the Edo period's Tenmei era (1781-1789). The powerful Sendai Domain, in Mutsu Province, was under Date Shigemura (1756-1796), its 7th *daimyō*. This period saw the devastating Tenmei Famine, severely impacting Japan, including Tohoku. Local domains like Sendai minted *bosen* (local currency) to facilitate regional trade and alleviate economic distress, supplementing central *Kan'ei Tsūhō* issues.
Artistry: Specific engraver attribution for Edo-period *bosen* is rare, and none is known for this Sendai issue. The "仙台通寶" (Sendai-tsūhō) inscription's calligraphy adheres to the standard *kaisho* (regular script) prevalent on Japanese cash coins, influenced by classical Chinese prototypes. *Bosen* often exhibit minor variations in character execution and aesthetic quality, reflecting the decentralized nature of local minting compared to standardized central government issues.
Technical/Grading: For this copper alloy 'small type' 1 Mon 'Sendai-tsūhō' Bosen, key grading points include clarity and sharpness of the four obverse characters, especially inner strokes. Definition of both inner and outer rims should be strong. Minor casting flaws, common for *bosen*, should not obscure critical design elements. Original patination and surface integrity, free from excessive corrosion or damage, are crucial for higher grades, alongside adherence to the specific "small type" module.