Helen Frankenthaler’s Walking Rain, an Intaglio from 1987, is estimated to be worth £9,500 to £13,500 (signed). This artwork has sold 6 times at auction since its initial sale in October 2012. During the last five-year period, the hammer price ranges from £3,863 in December 2022 to £7,000 in September 2023. The edition size of this artwork is limited to 54.