1.This stamp has a small amount of serious error issued or unissued only a small amount of outflow, it becomes the wrong version stamp.
这种严重错误邮票已经少量发行，或未发行仅有少量流出，即成为错版邮票。
2.A corporation may acquire its own shares, and shares so acquired constitute authorized but unissued shares.
公司可以获取他自身的股票，并且如此获得的股票构成了公司已授权发行但未发行的股票。