民国二十年中国实业银行壹圆。单正面试印钞。ABNC印制。打孔注销。正面票样。PCGS纸币评级标注黏贴残留,轻微铅笔笔迹。CHINA--REPUBLIC. National Industrial Bank of China. 1 Yuan, 1931. P-531p. S/M#C291-10. Face Proof. PCGS Banknote Choice Uncirculated 64 Details. Adhesive Residue, Minor PencilPrinted by ABNC. Hole punch cancelled. Face proof. PCGS Banknote comments Adhesive Residue, Minor Pencil.