An even larger '100' vertically positioned on the back to help those with visual impairments identify the currency.ДЁ. A large '100' on the front that also changes color when tilted.Д§. A liberty bell inside an ink well that changes from copper to green when tilted.Д¦. Alternating images of bells and the number 100 that change as the viewing angle is tilted.ДҐ. A faint image of Ben's face in the black space on the right, which can be seen on both sides of the bill.Д¤. It's only visible when held up to the light.ДЈ. Another security strip to the left of Ben's face. A blue, three-dimensional security ribbon that's woven - not printed - into the note's fabric.Дў. In the interest of preventing confusion at the cash machine, here's a quick look at the new $100:ДЎ. The billions of notes already in circulation will remain legal, but starting October 8, they will be destroyed and replaced when they pass through the Fed. This new bill should make 'supernotes' extremely difficult to produce.ДЄnd don't worry about turning in the stack of old $100s under your bed. North Korea in particular is known for producing incredibly high-quality counterfeit $100s known as 'supernotes,' which are almost impossible to detect as fakes. And though the bill costs slightly more to produce than our current $100 note, it should save money in the long run - $100s are more frequently counterfeited than any other U.S. The new currency is loaded with high-tech features that will make it 'easier for the public to authenticate, but more difficult for counterfeiters to replicate,' says the Fed. The new Benjamins were originally scheduled for circulation starting in February 2011, but the agency was forced to postpone due to problems including 'unwanted creases' reports the Los Angeles Times.

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