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1 Mon `Keichōtsūhō` - Keichō
| Issuer | Japan |
| Year | 1606 |
| Type | Standard circulation coin |
| Value | 1 Mon |
| Currency | Mon (683-1953) |
| Composition | Copper |
| Weight | 2.21 g |
| Dimensions | 23 mm |
| Thickness | |
| Shape and Technique | Round with a square hole
Cast |
| Orientation | |
| Engraver(s) | |
| In circulation to | |
| Reference(s) | DHJ#3.40-42, KM#5 |
| Obverse description | Four characters around hole |
| Obverse script | |
| Obverse lettering | 慶
寳 通
長
(Translation: Currency of Keichō) |
| Reverse description | Plain |
| Reverse script | |
| Reverse lettering | |
| Edge | Smooth |
| Mint | |
| Mintage | ND (1606) - DHJ# 3.40 -
ND (1606) - DHJ# 3.41; small characters -
ND (1606) - DHJ# 3.42; long top stroke on 寳 -
|
| Catalog ID | 7380194200 |
| Comments | |
