You'd never Guess? Claudia Schiffer has been modeling for over 20 years.
Here's the 21-year-old German stunner back in 1991 (left) -- and 18 years later, the 39-year-old version in London this week (right).
Super model, in deed.
Good Genes or Good Docs?
11/8/2009 9:15 AM PST BY TMZ STAFF
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