This cover decoration is just an ink drawing on a canvas material of the cover that wasn't even properly fixed on the cardboard. Add not-really-straight lettering, voila! Metamorphoses by Publius Ovidius Naso. German edition, from 1897.
Usually, our city walks bring us to different bookish places even when I don't plan for it. This time wasn't an exception. We started from St. James Park but ended up near Waterloo Bridge, where we found Southbank Book Market.