We have one object that Léonard Roussel 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/2318796068/ |title=Léonard Roussel |author=Cooper Hewitt, Smithsonian Design Museum |accessdate=24 March 2019 |publisher=Smithsonian Institution}}</ref>