民国十九年中央银行关金伍佰圆正反面试印样票,有黄,AU;Central Bank of China, uniface obverse and reverse proof for 500 Customs Gold Units, 1930, vertical format, grey-blue, Sun Yat Sen at top centre, Customs Building on The Bund on the reverse,about uncirculated with small toning spots on both sides (1 pair)