"Tete de femme (Dora Maar)" and "La Lampe" by Pablo Picasso are up for auction at Sotheby's.
"Tete de femme (Dora Maar)" is a 31.5-inch (80-cm) bronze bust made in 1941 that is estimated to sell for $20 million to $30 million.
"La Lampe" from 1931 features the likeness of his mistress, Marie-Therese Walter, and should bring in $25 million to $35 million, Sotheby's said.
