It is a reproduction of a full-color watercolor of the Liebig's establishment, in April of 1866, dated in the author's hand and letter in the lower left corner of the work. That is to say that it is an exceptional element, unpublished and non-existent in the documentation that exists of the antecedents of our heritage today declared of Humanity by UNESCO, because there were no graphic documents of the time, except for a photo published in a magazine German, where the document of 1866 is also awarded.

The collection of watercolors whose author is the German Hermann Raebel, is in the library of UCLA (University of Los Angeles, California, United States), where they have been made available as public domain). They were donated by Darvel Lloyd and family, descendants of Raebel, whose biographical background is integrated into this report.

THE HISTORY OF A YOUNG PAINTER. The Ensign of the United States Navy Hermann C. Raebel Jr. (1848-1869) was born in Leipzig, Germany. He graduated from high school in Cleveland, Ohio. That same year he entered the US Naval Academy. UU and he graduated there in 1866.

On November 1, 1866, at age 18, while on the coasts of Brazil, Raebel received a commission as Ensign of the US Navy. UU of President Andrew Johnson. This made him the youngest officer in the US Navy.

On his mission through South American ports between 1866 and 1869, Raebel painted 46 watercolors and wrote several letters to his father with details of his experiences and places he visited. The trip included ports of Montevideo, Nueva Palmira, Fray Bentos, Arroyo Negro (in the Lower Rio Uruguay), Buenos Aires and Rio Negro (Argentine Patagonia).

In 1869, Raebel contracted yellow fever in the Caribbean and on June 25 he died on the hospital ship Illinois in the port of New York. He was 21 years old.