The work last previously sold for $1.7 million in 2014 before experts reattributed it to Rembrandt.
The show will include 250 portraits taken by Walker.
Works by Marc Chagall and Anna-Eva Bergman were among the 70% of lots selling above their low estimate at Sotheby's 'Modern & Contemporary Discoveries including Works from the former Claude et Georges Pompidou Collection' auction on July 7 in Paris. The sale totaled $7.2m (EUR6.3m), exceeding the pre-sale high estimate.
A recently restored painting the young artist never completed led Sotheby’s London summer sales, which totaled $64.8m and rebounded to a C+ on the HENI Auction Index.
Hôtel des Roches Noires set a new auction record for Jean Baptiste Secheret, selling for $124,400 (EUR108,800) at Sotheby's Paris, $66,100 above the artist’s previous record sale, a 100% rise.
Get the HENI News Daily Art Digest delivered to your inbox