ELLIOT(1875) p285 - Plate XXXIV. Interior adjustments of level in mineral-oil light-house lamps.jpg
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ELLIOT(1875) p285 Plate XXXIV. Interior adjustments of level in mineral oil light house lamps, European Light-House Systems (1875) by ELLIOT, Uploaded by the British Library, Images from the British Library Mechanical Curator collection, Images from the British Library
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ELLIOT 、p285 プレートXXXIV。ミネラルオイルライトハウスランプのレベルの内部調整。ELLIOTによる。大英図書館蔵。大英図書館機械学蔵蔵。画像
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mineral oil adjusting entry lamp house