Among the highlights is this early 17th century work by the Dutch artist Abraham Bloemaert (1564-1651). The 5 x 9in (13 x 23.5cm) drawing in pen and brown ink over black lines with white gouache (oxidised) is annotated Bloemart lower right.
It portrays Neptune and Amphitrite and is similar to a series of Marine Triumphs that the artist made c.1620-30.
Estimate €6000-8000.