Georg Dionysius Ehret (1708-1770)
Balsamina (Balsam) and a hovering Moth
inscribed, signed and dated 'BALSAMINA foemina flore variegate pleno G.D. Ehret. pinxit 1757' (lower right)
pencil and watercolour, heightened with bodycolour and gum arabic on vellum, unframed
19½ x 13.7/8 in. (49.5 x 35.2 cm.)