https://dpul.princeton.edu/
Little by little, digital images from the Graphic Arts Collection that have been hiding in various sites over the years, are being moved to a new location. Lorenzo Homar, James Gillray, and Thomas Nast have made the jump, along with a handful of other things.
The best way to get a look is to put your cursor in the search box but not type anything. https://dpul.princeton.edu/ga_treasures/catalog?utf8=%E2%9C%93&exhibit_id=ga_treasures&search_field=all_fields&q= This gives you almost 2,000 digital images including prints, drawings, illustrated books, and more. We are still figuring it out. You can download single images or whole books, such as the one above from the Sinclair Hamilton Collection. Here are a few highlights: