Shipping in a Calm (recto); a Sketch of Clouds (verso)

The present lot gives an interesting insight into the working methods of the artist. Like Willem van de Velde the Younger, Schotel would sometimes indicate the horizon and lines of perspective in his drawings, as evidenced by the present lot where Schotel marked one line as 'ho' for horizon, and another line with an 'm', possibly to indicate 'muur' (wall) to mark the vanishing point