A bouquet of roses.
Watercolour over chalk on vellum, 34 x 25.5 cm. (13 3/8 x 10 in), framed size 54.5 x 45.5 cm. (21 1/2 x 18 in), signed in the bottom right corner, framed and glazed.
Leo R. Schidlof, The Miniature in Europe in the 16th, 17th, 18th, and 19th Centuries, Volume 2 (1964), page 646.