We have 298 objects that J. Grantil Company 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/18057349/ |title=J. Grantil Company |author=Cooper Hewitt, Smithsonian Design Museum |accessdate=15 November 2024 |publisher=Smithsonian Institution}}</ref>