Rock Drill (Jacob Epstein) with its straining to one purpose, is a vivid illustration of the greatest function of life.' In 1940, however, recalling the horrors of the 1914–18 war in the context of the Second World War, Epstein reinterpreted the sculpture much more negatively: Study for Rock Drill (c. 1913) is a × charcoal drawing by Epstein which is part of The Garman Ryan Collection at The New Art Gallery Walsall. Whilst the exact date of the sketch is unknown, because it is a preparatory study for Epstein's full sculpture "Rock Drill", it has been dated to 1913. Epstein dismantled the original sculpture:
Barbara Hepworth her large-scale bronzes. Her eldest son, Paul, was killed on 13 February 1953 in a plane crash while serving with the Royal Air Force in Thailand. A memorial to him, "Madonna and Child", is in the parish church of St Ives. Exhausted, in part from her son's death, Hepworth travelled to Greece with her good friend Margaret Gardiner in August 1954. They visited Athens, Delphi, and many of the Aegean Islands. When Hepworth returned to St Ives from Greece in August 1954, she found that Gardiner had sent her a large shipment of Nigerian guarea hardwood. Although she received only