On the modern collection bills, the microprinting can be found on Franklin's collar, The underside of Franklin's portrait, also to the best on the brown quill. Microprinting was to start with added for the $100 bill in 1990. If you hold the bill towards the light and there's no watermark https://mackerel-tin-fish-buy-onl74407.blogs100.com/33803029/the-smart-trick-of-how-to-tell-a-dollar-is-fake-that-nobody-is-discussing