According to the information that the newer versions of the notes go not only to the paper preembedded in wire and wire on the microfilm can only be used by highly magnifying glass to see the text.

• 据有关资料称，新版美钞不仅在纸中埋入金属线，而且金属线上缩微了只能用高倍放大镜才能看清的有关文字。