Manuel Halvelik en 1975 dum prelego en la antverpena Esperanto-grupo.
The original uploader was <a href="https://en.wikipedia.org/wiki/eo:User:PaulP" class="extiw" title="w:eo:User:PaulP">PaulP</a> at <a href="https://en.wikipedia.org/wiki/eo:" class="extiw" title="w:eo:">Esperanto Wikipedia</a>.
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Transferred from <span class="plainlinks"><a class="external text" href="https://eo.wikipedia.org">eo.wikipedia</a></span> to Commons by <a href="//commons.wikimedia.org/wiki/User:Remux" title="User:Remux">Remux</a>. AKA "Kamiel Vanhulle".