Large Spindle Piece was based on the shape of a piece of flint with protruding points that Moore found near his Perry Green home. It was also greatly inspired by Moore’s fascination with Michelangelo, which had begun almost 50 years earlier. A Royal Academy Scholarship had enabled Moore to travel to Italy in 1925 where he visited the Sistine Chapel. The dynamism created by the almost touching fingers of Adam and God in Michelangelo’s depiction of the Creation had inspired Moore to think about the tension between points and the energy this could convey. Large Spindle Piece also developed an earlier idea from the work Three Points made in 1939; he said: “Here again the points are used to give action: inwards in the case of the Three Points, but here to give action outwards”.

Sister work - points going inwards -Oval with Points, 1968-70, LH 596

Maquette LH 591
https://www.metmuseum.org/art/collection/search/482559 (references)

Mid Size LH 4/592
http://webarchive.henry-moore.org/works-in-public/world/japan/hakone/open-air-museum/spindle-piece-1968-69-lh-592

Plaster - https://catalogue.henry-moore.org/objects/14045/working-model-for-spindle-piece?ctx=b5f0ee8f679fd5d710969efa57e81bdae17b1ecd&idx=11
is in the Henry Moore Foundation collection

Large Outdoor LH 593
https://webarchive.henry-moore.org/works-in-public/world/uk/london/kings-cross-station/large-spindle-piece-1974-lh-593
https://ysp.org.uk/art-outdoors/large-spindle-piece#gallery_40522-0
http://www.sculpturesofjeddah.com/sculptures/detail/large-spindle-piece
Large Spindle Piece, 1969 is in the City of Houston's Municipal Art Collection and is currently cited outdoors on Allen Parkway.

Marble ?

It's all here: https://catalogue.henry-moore.org/search/spindle/objects/images?page=2