There aren't any objects involving Hermann Ratzerdorfer 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/18045403/ |title=Hermann Ratzerdorfer |author=Cooper Hewitt, Smithsonian Design Museum |accessdate=14 November 2018 |publisher=Smithsonian Institution}}</ref>