VIA is a catalog of visual resources at Harvard related to art, architecture, archeology, ethnography, and material culture. VIA includes information about slides, photographs, artwork, and artifacts in the University's libraries, museums, and archives.
I was interested in finding inspiration for chinoise style painted panels and searched for "Chinese illustration".
There are trade cards, daguerreotypes and Chinese rubbings in the collection.
I also found some very interesting designs with a search for "printed textiles"