Three paint palettes used by Pablo Picasso were all the spotlight at Sotheby’s large sale “The World of Picasso” at the beginning of this month, which presented over 200 works spanning Cubist master career. The results from the auction are now in, and the palettes Picasso used in the ’60s and ’70s, fetched between £23,750 and £56,250 (approx. $26,600 and $69,800). With estimated sales between £2,000 and £6,000 (approx. $2,500 and $7,500), the final results emphasize how relics from an artist’s creative process can be just as important as the final paintings themselves.

Two of the palettes are traditional wooden paint palettes used in 1973, while the third is a piece of cardboard from the early 1960s. All three palettes have Picasso’s oil mixtures still visible on them. They come from Picasso’s granddaughter Marina Picasso’s private collection, which contributed the sale with over 60 sketches and portraits of Picasso’s muse and second wife Jacqueline. The authenticity was confirmed by the artist’s son, Claude Picasso.

See them below and the rest of the works from the auction sale on Sotheby’s website.