Category:磁針偏差図
| This is the category for the Japanese book 磁針偏差図. |
日本語: 磁針偏差図
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Media in category "磁針偏差図"
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NDL847044 磁針偏差図 - 一八九五年同一偏差線.pdf 7,885 × 5,083, 18 pages; 47.27 MB