Single Form Single Form Single Form (BH 325) is a monumental bronze sculpture by the British artist Barbara Hepworth. It is her largest work, and one of her most prominent public commissions, displayed since 1964 in a circular water feature that forms a traffic island at the Headquarters of the United Nations in New York City, outside the United Nations Secretariat Building and the Dag Hammarskjöld Library. It is also the largest artwork cast by the Morris Singer foundry. Copies of a smaller version, Single Form (Memorial) (BH 314), are on public display outside the Johns Hopkins University's Paul H. Nitze School
Single Form sandalwood sculpture "Single Form" (BH 103) which he displayed in his United Nations office (now in the Dag Hammarskjöld Museum at Backåkra in Sweden). He had discussed with Hepworth the possibility of her being commissioned for a work at the United Nations Headquarters. She may have started work, expecting a commission, before Hammarskjöld's death: the commission was formally ratified by the United Nations in September 1962. Hepworth had started work that led to the bronze in 1961. "Single Form (Chûn Quoit)" (BH 311) was cast in bronze in an edition of seven in 1961, with its shape marked with an