There are two sketches on the inside front cover of this sketchbook, both drawn with the book turned to the right. At the top is a sketch of part of a castle with the inscription ‘19 lines’, indicating some architectural features. The castle has not been identified. At the bottom of the page is a sketch inscribed ‘St John’. This presumably depicts St Johns-in-the-Vale, a valley that runs between Clough Head in the east and High Rigg and Low Rigg in the west, in the northern Lake District. There is another sketch of the valley on folio 29 verso (D25580).
Other inscriptions on the page were made by the executors of the Turner Bequest and Finberg who first catalogued the sketchbook.