LEPPIN & MASCHE 



17 Engelufer Berlin, S. O., Germany 



FACTORY OF 



Scientific Instruments 



All Physical Apparatus for Lecture Purposes 

 on Mechanics, Sound, Light, Heat and Electricity 



Induction Coils 



Leyden Jars for Wireless Telegraphy 



Models of Wireless Telegraphy Apparatus 



Tesla Apparatus 



Electrical Whirling Tables 



Electrical Melting Furnaces 



Apparatus for Three Color Theory 



