Evelyne Morel de Westgaver
Bruxelles,
Belgium
Adelheid Klittich-Pfankuch
Braunschweig,
Germany
Peter Kiefer
Pforzheim,
Germany
Daniel Schramm
Kiel,
Germany
Károly Schneller
Budapest,
Hungary
Dr. Markus Brandis
Berlin,
Germany
J.A.P. Bosch
Haarlem,
Netherlands
Drs. A.D. Steenkamp
Leiden,
Netherlands
Mr. Cecil Hagelstam
Helsinki,
Finland