For extra safety, the denominations of $five and higher are more colourful compared to greenback, with the light purple Centre of the $5 bill blending into grey in the vicinity of the sides. A further new attribute of such higher denominations could be the watermark, which you can see from https://collinwjtcm.bloggazzo.com/34230253/what-does-what-us-currency-is-the-most-copyright-mean