Electrotechnical magazine around 1900

Lot 1037 limit € 20

4 bound volumes in total: Centralblatt für Elektrotechnik - organ of the Elektrotechnischer Verein and the Association of German Electrical Engineers, including: XXI. Year 1900, XXXIII. Year 1902, XXVI. Born in 1905 and XXXIII. Born in 1912, Berlin Verlag von Julius Springer / Munich: Verlag von Oldenbourg, half leather of the time, different. Signs of age and wear (among other things, volumes rubbed. best.)