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.

Yuan Tseh Lee Taiwanese chemist of First Taiwanese won ...

Autograph of Yuan Tseh Lee Taiwanese Chemist of First ...

Autograph of Karl Barry Sharpless of An American chemi ...

DR Peter Max of German born American illustrator and ...

Autograph of Fredrik Reinfeldt.

Tomas Berdych of Czech professional tennis player.

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

Autograph of Judith Susan Sheindlin.

Desmond Tutu, South African Social rights Activist