Keywords: Bomb1.jpg own scan of very old 1860 diagram en wikipedia Alu cz 2008-05-31 Peterlewis wikipedia en Peterlewis Original upload log page en wikipedia Bomb1 jpg 2008-05-31 16 17 Peterlewis 1411×314× 30144 bytes <nowiki>own scan of very old 1860 diagram</nowiki> Marcellin Berthelot |