We have one object that Joannes Loetz Witwe has been involved with.

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/264617/ |title=Joannes Loetz Witwe |author=Cooper Hewitt, Smithsonian Design Museum |accessdate=17 May 2021 |publisher=Smithsonian Institution}}</ref>