Muirhead Bone (Scottish, 1976 - 1953), Scaffolding on the Staircase of the British Museum, c. 1906, metalpoint (probably silverpoint) on white commercially prepared paper, 12 3/8 × 9 5/8 (31.5 × 24.4), On loan from The British Museum, London © The Trustees of the British Museum, London, 1907,0124.2.