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:
Jacob Epstein (spy) Jacob Epstein (spy) Jacob Epstein, also Jake Bermanen, (10 November 1903 – 10 February 1998) was born in Brooklyn, New York of Russian parents. He graduated from Cornell University in 1924, where he became friends with Anna Colloms, who was also a student. In 1938, Epstein volunteered for the International Brigades during the Spanish Civil War, and was badly wounded. Epstein married Ruth Beverly Wilson, whom he met while convalescing from his injuries, and both allegedly served as Soviet intelligence operatives. During World War II, Epstein was stationed by Soviet intelligence in Mexico City. Epstein was put in charge of