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| Six of the instruments were designed and constructed under the direction of the Belgian priest Ferdinand Verbiest in 1659 when he was employed by the Qing Court. |
| Total images: 4 | Help |
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| Six of the instruments were designed and constructed under the direction of the Belgian priest Ferdinand Verbiest in 1659 when he was employed by the Qing Court. |
| Total images: 4 | Help |