We have 2 objects that Conowingo Wall Paper Company has been involved with.

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<ref name=CH>{{cite web |url=https://www-6.collection.cooperhewitt.org/people/34624605/ |title=Conowingo Wall Paper Company |author=Cooper Hewitt, Smithsonian Design Museum |accessdate=4 October 2022 |publisher=Smithsonian Institution}}</ref>