Table 1 Examination of the original state before treatment
From: Reflectance transformation imaging for documenting changes through treatment of Joseon dynasty coins
No | Inscription | Original state | Weight size | Obverse/reverse |
|---|---|---|---|---|
1 | Obverse: 常平通寶 Reverse: 江/二 | A small corrosion of blueish green (malachite) on the front and overall dark color patina (cuprite) formed on the back | 6.83 g 30.0 mm |
|
2 | Obverse: 常平通寶 Reverse: 禁/五/) | Some areas of blueish green corrosion (malachite) on both sides; some dark color patina areas (cuprite) | 4.18 g 24.9 mm |
|
3 | Obverse: 常平通寶 Reverse: 訓 | Overall corroded in blueish green (malachite) and dark patina (cuprite); some areas showing blue (azurite); inscribed letters on the back of the coin are not clearly identified owing to corrosion | 4.17 g 24.6 mm |
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