Painting Evgraf Teich

[Mark]

Dear Experts! I have a watercolor signed "Teyh": watercolor on paper, size about 45 õ31 see the work I have a long time, but somehow it did not pay attention to it, and now introduced into the daylight, and was amazed at what a beautiful watercolor.
About the author I could only learn that it Teyh Evgraf (Edward) Gustavovich genus. August 11, 1832 was volnoprihodyaschim listener Ak. Hood. In 1858 he received the title neklassnogo ( "Circassian Circassian and on horseback"), and in 1871 - the class artist grade 3 (Winter view "," Village Court "). Exhibited at academic fairs in 1870, 72, 73, 75 respectively.
Maybe someone else is seeing something about this artist or seen his paintings? I am very much inspired with their Teich.
At the same time, maybe someone will be able to thread a link where to read about the "klassnosti" and degrees of artists in the Imperial Academy.