Anton Graff (german 1736 - 1813) Portrait Of Count Osterman, Miniature On Ivory

High quality miniature portrait was executed ca. in 1795-1800, on the back of the portrait, there are two old inscriptions in German: name of the sitter "Graf Osterman" and original label with the name a of the artist "Anton Graff (1736 - 1813)".
Although unsigned, but due to the high quality, style and time of creation, the miniature attributed as absolutely authentic work by very important Swiss-German court portraitist, miniaturist and professor of the art academy at Dresden Anton Graff (1736 Winthertur - 1813 Dresden). The inscription on the back of the sitter "Graf Ostermann" may mean that it is the portrait of a representative of the noble Russian-German House of Osterman. due to the time of creation and style of the statesman's costume, probably by Ivan Andreyevich Osterman (died 1811), Russian statesman and son of the famous Russian Vice-Chancellor of All Russia Andrey Osterman (1686 - 1747). About the author of the miniature see:

http://www.bildungsdirektion.zh.ch/internet/bi/de/aktuell/News08/Anton_Graff.ContentList.0003.Document.pdf

Literature: Thieme / Becker "General Artists Lexicon" (in German), Leipig, 1999; von Boetticher "Malerwerke des 19 Jahrhunderts", 1891.
Inscription: unsigned, on the back of the miniature are two old inscriptions: with the name of the sitter "Graf Osterman" and an old label with the name of the artist : "Anton Graff (1736-1813)"
Technique: oil on canvas or ivory, placed on wood. Original period bronze frame.
Measurements: unframed 8.3 x 10.7 cm, framed 9 x 12 cm.
Condition: very good