1979年中国银行外汇兑换券伍拾及壹佰圆。两张样张。两张顶尖品相的外汇兑换样票。(t) CHINA--PEOPLES REPUBLIC. Lot of (2). Bank of China. 50 & 100 Yuan, 1979. P-FX6s & FX7s. Specimens. Foreign Exchange Certificates. PMG Superb Gem Uncirculated 67 EPQ.A duo of Superb Gem Foreign Exchange Specimens.