Electrotechnical magazine around 1900

Lot 1022 limit € 50

4 bound volumes in total: "Centralblatt für Elektrotechnik - Organ of the Electrotechnical Association 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.)