Lila Pell Katzen (December 30, 1925-September 20, 1998) was an American sculptor of fluid, large-scale metal abstractions. Originally a painter, she began to focus her attention on sculpture in 1964.
Biography on Wikipedia: https://en.wikipedia.org/wiki/Lila_Katzen

Pinkney by Lila Katzen
1978 / Steel, Cor-Ten / 61″x55″x30″ / Grounds for Sculpture, Hamilton, NJ

Lila Katzen on Invaluable: https://www.invaluable.com/artist/katzen-lila-pell-m2pdkuhmt6/sold-at-auction-prices/

Further reading:
https://www.groundsforsculpture.org/artists/lila-katzen/
https://stanleymuseum.uiowa.edu/about/stories-from-sma/from-the-archives-2/
https://www.nytimes.com/1998/10/04/nyregion/lila-katzen-72-sculptor-of-abstract-works.html

Lila Katzen Lecture, 1981, at Maryland Institute College of Art: https://archive.org/details/mma240-02/mma240-01.wav