WAGNER, Richard. The Rhinegold & the Valkyrie, translated by Margaret Armour, London: William Heinemann, 1910, 4°, limited to 1150 copies signed by the artist, 34 mounted coloured plates after Arthur Rackham (spotted), contemporary vellum gilt (hinges cracked, soiled, lacking ties), t.e.g. [Latimore & Haskell p. 37; Riall p. 103]; Siegfried & the Twilight of the Gods [translated by Margaret Armour], London: William Heinemann, 1911, 4°, FIRST TRADE EDITION, 30 mounted coloured plates after Arthur Rackham (part of lower margin of 3 leaves torn away, light marginal browning), original cloth gilt (spine faded, somewhat rubbed). [Latimore & Haskell p. 38; Riall p. 109] (2)