A gallery assistant examines "Mask", a sculpture by Henry Moore, at Bonhams auction house in London on November 12, 2018, ahead of the Bonhams Modern British and Irish Art sale on Wednesday 14 November. The work is one of 12 known small carvings by Moore, and uniquely is the only one carved from alabaster. The artwork has an estimated value of 1,000,000 pound to 1,500,000 pound. (Photo/Agencies)
Gallery assistants study "Mask", a sculpture by Henry Moore, at Bonhams auction house in London on November 12, 2018, ahead of the Bonhams Modern British and Irish Art sale on Wednesday 14 November. The work is one of 12 known small carvings by Moore, and uniquely is the only one carved from alabaster. The artwork has an estimated value of 1,000,000 pound to 1,500,000 pound. (Photo/Agencies)
A gallery assistant examines "Mask", a sculpture by Henry Moore, at Bonhams auction house in London on November 12, 2018, ahead of the Bonhams Modern British and Irish Art sale on Wednesday 14 November. The work is one of 12 known small carvings by Moore, and uniquely is the only one carved from alabaster. The artwork has an estimated value of 1,000,000 pound to 1,500,000 pound. (Photo/Agencies)
