Antique soldier portrait 1760/1820 watercolor Johann graf Harbuval et Chamarre

Description

Antique soldier portrait 1760/1820 watercolor Johann graf Harbuval et Chamarre
Painting is older then a frame, it is visible on the edges of the painting that it was prior
in another frame.
Painting needs to be cleaned. Work is original, not a copy or reproduction
Size of the work is 20 x 16 cm, 30x25 cm with frame
Portrait of Johann graf Harbuval et Chamaree
If i am not mistaking on the back it says the name of the person and "obersthofmeister"