The full title of this article by Tessa Solomon (ARTnews) is “Monumental Basquiat Self-Portrait Unseen Since 1999 to Appear at Sotheby’s.” “Self Portrait as a Heel (Part Two)” will be exhibited at Sotheby’s New York galleries starting November 1, 2023. A self-portrait by Jean-Michel Basquiat hidden from public view for nearly a quarter-century is set to be a marquee…