In 1976 Marinus Boezem (1934) appropriated the space of the former Graanbeurs at Dam Square in Middelburg as an international stage for conceptual art: "Podio del Mondo per l’Arte". Over the years, he invited several conceptual artists, like Lawrence Wiener and Herman de Vries, to design a stone to be placed on this platform. In 2016 Boezem asked artist Hans van Houwelingen to lay a stone on the conceptual podium.
Hans van Houwelingen: Dear college Marinus Boezem. You asked me to contribute a stone to your Podio de Mondo per l’Arte. Here is my design. I humbly wait for your approval, love to hear what you think of it. The puny existence of a single squid or ammonite proves to relate to an ocean of time, their momentary imprint in time even gives eternity its face. That is why I have placed Podio del Mondo per l’Arte into a context of millions of years. On this scale of time your existence in this world, from 1934 on, is fossilized and sculpts your artistry into infinity. I place this stone on Podio de Mondo per l’Arte, being an ode to the conceptual artist, my friend Marinus Boezem. Measurement of the stone: 100 x 35 x 5 cm.