Numbered on verso in pencil at lower right, "929"; also on verso, atelier stamp in black ink, at lower left, "Atelier PILS" (Lugt 2030).
One of a group of preparatory studies for Pils's finished watercolors of the subject in the Walters Art Gallery, Baltimore (37.951). Another sheet in the collection of the Library (Acc. No. 1995.17) also relates to these watercolors.