Complete Poetical Works of Percy Bysshe Shelley, all three volumes

The 3-volume Oxford edition, edited by Thomas Hutchinson, and first published in 1914. According to Wikipedia: "Percy Bysshe Shelley (August 4, 1792 – July 8, 1822) was one of the major English Romantic poets and is widely considered to be among the finest lyric poets of the English language. He is perhaps most famous for such anthology pieces as Ozymandias, Ode to the West Wind, To a Skylark, and The Masque of Anarchy. However, his major works were long visionary poems including Alastor, Adonais, The Revolt of Islam, Prometheus Unbound and the unfinished The Triumph of Life."