Kuok Chio also damaged a calligraphy work by Singaporean artist Lim Tze Peng when he tried to clean it by following an online video tutorial. SINGAPORE: An antique dealer was sentenced to two years and five months' jail on Monday (Mar 3) for selling a client's Qing Dynasty vase to pay off his debts. Kuok Chio, 42, also returned the same collector a fake calligraphy work after damaging the original painting when he was trying to clean it. Kuok, who owns antique business Chinese Art Centre,