1990年第四版人民幣壹圓。 樣張。黑色序列号。样票编号09100。侗族和瑶族人物头像。方孔古钱四方连续水印。CHINA--PEOPLES REPUBLIC. The Peoples Bank of China. 1 Yuan, 1990. P-884bs. Specimen. PMG Gem Uncirculated 65 EPQ.Black serial number. Specimen No. 09100. Partially engraved face. Watermark of pants & coins.