There aren't any objects involving Marjan de Groot that have been photographed yet or maybe they have (had their pictures taken) but we can't show them to you right now.
If you would like to cite this person in a Wikipedia article please use the following template:
<ref name=CH>{{cite web |url=https://collection.cooperhewitt.org/people/68263915/ |title=Marjan de Groot |author=Cooper Hewitt, Smithsonian Design Museum |accessdate=6 February 2026 |publisher=Smithsonian Institution}}</ref>
