Siemen Bolhuis in 1986
Bogaerts, Rob / Anefo
CC BY 4.0
<a rel="nofollow" class="external text" href="http://proxy.handle.net/10648/ad562934-d0b4-102d-bcf8-003048976d84">Nationaal Archief, Fotocollectie Anefo</a>