Focus on Marsh with Water Lilies and explain the History.
The drawing was in the holdings of Vincent's sister Wil who left Etten in June 1881 to take up a position as a governess in Amsterdam. At the same time there is a mention in a letter to Theo of Vincent making a pen drawing in the Passievaart marshes of lilies during an excursion with Anthon van Rappard, who was visiting. It is reasonable to suppose he gave this drawing as a leaving gift to Wil, thus  dating the drawing as around 13 June 1881 from van Rappard's own date for his Passievaart drawing.
Wil Anthon van Rappard Theo