December 1920 - March 1921
The 3 Lustrum board
The Board of the Electrotechnische Vereeniging of {period} has been constituted as follows:
| N.E. Groenevel Meyer | President |
| W. Hondius Boldingh | Secretaris |
| J. Reiseger | Thesaurier |
| A.G. Zinsmeister | Vice-President / Afgev. C.C. |
| J.P. van Lier | Bibliothecaris |