Autograph,&nbsp;Gerhard Ertl. is a German Physicist and Professor Emeritus at the department of Physical Chemistry, Awarded the 2007 Nobel Prize in Chemistry for his studies of chemical processes on solid surfaces, about extremely fine.

Autograph of German Physician Gerhard Ertl.

Autograph of German Physician Gerhard Ertl.

Autograph of Wolfgang Ketterle of German Physicist.

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Autograph of Ben Engel.

Wolfgang Ketterle is a German physicist and Professor o ...

Andrus Ansip is the prime Minister of Estonia.

Desmond Tutu, South African Social rights Activist

Autograph of Dozi South African Singer.

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Autograph of Tomas Berdych of Czech Professional Tennis ...

Autograph of Demetris Christofias of The president of t ...