Watercolor representing the portrait of a herbalist seated in his work interior, his library in the background, dedicated "Pati dilectissimo Antiquus Amicus" (To our dear old friend) G. du Perier de Larsan and dated September 29, 1820, from early nineteenth century.
This watercolor is in good condition. It is under glass.
A note: the paper is slightly curled and yellowed in places, some small accidents and gaps on the frame, wear of time, see photos.