A way to share and manage lots.
Ray F. Fleming, Birmingham, Michigan
Heritage Auctions, Dallas, "20th & 21st Century Design Auction," April 23rd, 2014, lot 62066
Acquired from the above by the present owner
June Kompass Nelson, Harry Bertoia: Sculptor, Detroit, 1970, pls. 61, 72 for similar examples
Nancy N. Schiffer and Val O. Bertoia, The World of Bertoia, Atglen, 2003, p. 199 for a similar example
New York Auction 12 December 2017