Intrigue is usually focused on her enigmatic smile. However, when viewed under a microscope, historians in Italy have discovered that by magnifying the eyes of the “Mona Lisa” tiny numbers and letters can be seen.
Experts say the barely distinguishable letters and numbers represent something of a real-life Da Vinci Code: in the right eye appear to be the letters LV which could well stand for his name, Leonardo Da Vinci, while in the left eye there are also symbols but they are not as defined. Of course, it’s very difficult to make them out clearly but they appear to be the letters CE, or it could be the letter B. In the arch of the bridge in the background the number 72 can be seen, or it could be an L and the number 2. Also, the number 149, with a fourth number erased, appears behind the picture, which suggests that Da Vinci painted it when he was in Milan in the 1490s.
You have to remember that the ¬picture is almost 500 years old, so it is not as sharp and clear as when it was originally painted.
Source: secretsofthefed.com
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