2012年中国银行20元连号1000枚,首枚编号CB172652,有原包装纸,未经开封,当年仅发行3个字轨,发行量300万枚,现代钞而言是非常少的发行量。Bank of China,lot of 1000 x$20, dated 1.1.2012, the serial of the first note CB172652, uncirculated with the original paper wrapper and unopened. Only 3 prefixes were issued in that year making the absolute maximum total 3 million pieces and thus very scarce for a modern note (1000)