Roy Lichtenstein is best known for his Pop Art comic book style works, so I was quite surprised to come across this page from one of his sketchbooks, which is now in the collection of the Whitney Museum.
Not comic-y at all, these seem to be studies of perhaps architectural moldings and patterns. I was hoping to find other images from this sketchbook, so I flipped through all of the Lichtenstein works the Whitney has in their online archive. I didn’t see any other pages like this, but there were a lot of photos of architectural elements, and other drawings that were quite different from Lichtenstein’s most famous work. It was quite interesting, even if I didn’t get the full sketchbook flip-through I’d hoped for!