Children's Illustrated.- Wagner (Richard) & Rackham (Arthur) The Ring of the Niblung translated by Margaret Armour: The Rhinegold & The Valkyrie, Siegfried & The Twilight of the Gods, together 2 vol., each one of 1150 copies signed by the artist, 34 and 30 tipped-in colour plates by Arthur Rackham, illustrations, original pictorial vellum, gilt, lacking ties, t.e.g., others uncut, spines slightly rubbed, 4to, 1910-11 (2)