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Paper making: bleaching cleaned rags with chlorine gas
ARP15A06_018

Paper making: bleaching cleaned rags with chlorine...

Russian soldiers prepare for a gas attack against German positions, during world war one in 1916
ARP17A13_127

Russian soldiers prepare for a gas attack against ...

Claude Louis, Comte Berthollet
ARP07112_009869P

Claude Louis, Comte Berthollet