私人收藏(可能約於1973年購自華盛頓特區《盧浮宮小丘》展覽)
現藏者繼承自上述藏家
Nancy N. Schiffer and Val O. Bertoia, The World of Bertoia, Atglen, 2003, pp. 10, 180, 182, 199-200, 2003 for similar examples
Celia Bertoia, The Life and Work of Harry Bertoia: The Man, the Artist, the Visionary, Atglen, 2015, pp. 135-43, 145 for similar examples
Beverly H. Twitchell, Bertoia: The Metalworker, London, 2019, p. 241 for a similar example