Robert Indiana’s Greenpeace Love (white and green) (signed), a screen print from 1994, is estimated to be worth £2000 to £3000. This artwork has sold 7 times at auction since its initial sale in 2010. During the last five-year period, the hammer price ranges from £3158 in February 2023 to £5500 in August 2023. The edition size of this artwork is limited to 170.