Not on display
The drawing was made with the page turned horizontally. As identified by Cecilia Powell,1 it shows the mouth of the River Lahn where it flows into the Rhine from the east between Oberlahnstein and Niederlahnstein (now merged as Lahnstein), with Burg Lahneck high above the confluence. There is a similar view on folio 39 verso opposite (D30533; Turner Bequest CCCIII 38a).
Powell has noted that Turner neared the end of this tour following ‘the familiar route of the Rhine between Mainz and Cologne. He almost certainly travelled by steamer, ... sketching most of the well-known sights perfunctorily as he passed.’2 Given that this sketchbook was used in reverse of its subsequent foliation, she has specified the overall range of this phase as ‘TB CCCIII 68v–20v; 11r’,3 indicating folios 12 recto and 21 verso–69 verso (D30479, D30497–D30592; Turner Bequest CCCIII 20a–68a); see this book’s Introduction for the full itinerary of this part of the journey.
For other Lahn and Burg Lahneck views in this sketchbook and elsewhere, see under folio 39 recto (D30532; CCCIII 38).