On the modern sequence bills, the microprinting are available on Franklin's collar, The underside of Franklin's portrait, and to the correct on the brown quill. Microprinting was to start with extra into the $100 bill in 1990. I use the standard or collector grading described in Accumulating Confederate Paper Money https://buy-fake-dollars-in-usa16891.bluxeblog.com/65160994/the-smart-trick-of-how-to-check-copyright-that-no-one-is-discussing