Sotheby's says it has discovered that grafitti artist Jean-Michel Basquiat secretly signed one of his paintings in invisible ink.
Jean-Michel Basquiat - 20th c. & Co Lot 16 December 2020
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Jean-Michel Basquiat - 20th c. & Co Lot 16 December 2020
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Jean-Michel famously made use of unconventional objects as his
Long-unseen Basquiat self-portrait could reach $60m at Sotheby's