Louise Bourgeois's Untitled No. 4 (signed), an etching from 1990, is estimated to be worth £1,300 to £1,950 and has sold at auction 2 times since its initial sale in August 2022. During the last five-year period, the hammer price ranges from £1,692 in October 2024 to £2,068 in August 2022. The edition size of this artwork is limited to 44.