1928年劝业银行2角正反面试印票,均评PCGS Gold Shield 64 Details,少见。The Industrial and Development Bank of China,20 cents, uniface obverse and reverse proofs, 1928, orange, walled city at left, reverse green, Temple of Heaven at centre,(Pick 500pr), both sides graded PCGS Gold Shield 64Details. Rare (1 pair)