(MC) pg098 On the River Route. Exit of Corkscrew. The Corkscrew.jpg
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(MC) pg098 On the River Route. Exit of Corkscrew. The Corkscrew, The Mammoth Cave of Kentucky (1897) by HOVEY, Uploaded by the British Library, Images from the British Library Mechanical Curator collection, Images from the British Library
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』pg098 川路で。コークスクルーの出口。コークスクルー、ケンタッキーマンモス洞窟(1897)、大英図書館、大英図書館機械学修士コレクションの画像、大英図書館の画像
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corkscrew