Came across an interesting item tucked within hamletworks.org, titled: Visual Representations of Hamlet, 1709-1900. Check it out. Meanwhile, by way of augmentation, a quick search reveals: Hamlet on the Ramparts’ Art and Production Stills, Hamlet lantern slides, Delacroix’s Lithographs of Hamlet, The Royal Shakespeare Company’s Hamlet page, NYPL Hamlet, Wikimedia Hamlet, The Folger Shakespeare Library, and Shakespeare in pictures.