Variante Ovoide de la Desocupación de la Esfera by Jorge Oteiza at the city hall in Bilbao/Spain
<a rel="nofollow" class="external text" href="https://www.flickr.com/photos/29045663@N04">Josu</a>
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<a rel="nofollow" class="external text" href="https://www.flickr.com/photos/mrdos/2955260174/">Variante Ovoide de la Desocupación de la Esfera</a>