We have one object that Joh. Petersen AS 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://www-6.collection.cooperhewitt.org/people/69187127/ |title=Joh. Petersen AS |author=Cooper Hewitt, Smithsonian Design Museum |accessdate=9 February 2023 |publisher=Smithsonian Institution}}</ref>