The back of a Martin Wong painting unlocks the history of graffiti art | HOW TO SEEThis short documentary tells the unknown story of how the back of this painting got covered in graffiti. Before Martin Wong's painting "Houston Street" became part of our collection, rumors circulated about another artwork on its back. When our team replaced the stretcher, they had a chance to study a hidden piece that hadn’t been seen in over 40 years. We invited graffiti artist Sharp (Aaron Goodstone) ...