Last Updated：2025/11/27
The museum's conservation team studied the 19th-century electrotypy to understand how the plates were produced.
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The museum's conservation team studied the 19th-century electrotypy to understand how the plates were produced.
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博物館の保存チームは、19世紀の電鋳法を調査して、版がどのように作られたかを理解した。
