Carbon comes in many forms, including a radioactive type called carbon-14. After they die, the amount of carbon-14 in their bodies begins to decay at a predictable rate.
And that lower lid, just look at that, the two little lashes there.
It doesn't correspond to his artistic practice, and actually, I don't think, in point of quality, it compares at all favorably with anything made by him.
If it really is a Leonardo, it could be worth a hundred million dollars.
But first, you would have to prove it's authentic,…
The story begins in New York, on January 30th, 1998.
Christie's auction house holds its annual sale of work by Old Masters.
So, all the time, you're sort of pulling down and saying, "Hold on a minute," you know. Don't get there." They will ask you, "Why do you think that it could be a Leonardo? Cappuzzo takes a sample from the portrait to have its age determined through a process known as carbon-14 dating.
All plants absorb carbon atoms from the atmosphere.
And now, Peter Silverman is coming to believe that a rare and extremely valuable Leonardo has fallen into his lap.