138th: Science & Technology, Automata & Toys

211: Physical Demonstration Model by Ducretet, c. 1900

212: Van de Graaff Generator, c. 1950

213: Ampère Table, c. 1900

214: Cathode Ray Tube according to Crookes

215: Electric Motor with 10 Geissler Tubes, c. 1910

216: 2 Physical Demonstration Models with 9 Geissler Tubes, c. 1910

217: Group of Physical Demonstration Tubes, c. 1910

218: Ferdinand Braun's Cathode Ray Tube, c. 1900

219: Large Geissler Tube, c. 1900

220: 3 Physical Demonstration Models, 1900 onwards

221: 5 Glass Tubes for Physical Experiments, c. 1910

222: Crookes Phosphorescent Flower Tube, c. 1910

223: 2 Braun's Cathode Ray Tubes, c. 1920

224: 5 Devices for Electrostatic Generators, c. 1910

225: Large Induction Coil by Siemens & Halske, c. 1910

226: Large Induction Coil According to Ruhmkorff, c. 1910

227: 7 Electrostatic Experimental Models, c. 1910

228: 5 Electro-Physical Experimental Models, c. 1910

229: Battery of 4 Leyden Jars, Early 19th Century

230: 4 Physical Demonstration Models, c. 1910