January 1915 - November 1915
The Board of the Electrotechnische Vereeniging of {period} has been constituted as follows:
F.D. Pigeaud | President |
J.M. Verff | Secretaris |
J.M. Bletz | Thesaurier |
J. Weyland | Vice-President / Afgev. C.C. |
J.F. van Aalst | Bibliothecaris |