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Optical spectrometer or spectroscope, vintage engraving XIX century
Spectroscope, instrument measuring light property over the electromagnetic spectrum in order to detect and identify materials
Nuremberg, Germany, XVII century, fighting flames on a roof with water hoses.
Nuremberg, year 1658, men at work with water hoses to extinguish flames high in a building roof
Chemistry, carbon dioxide collection from honey fermentation
Vintage chemistry, device to collect the carbon dioxyde resulting from the fermentation of a 12.5% honey solution in water