A bodycolour drawing of the Henry VIII Gateway and Salisbury Tower in the Lower Ward, Windsor Castle. On the left is the western end of the houses built by Mary Tudor for the Military Knights. On the right, the southern end of Crane's Building. At the centre, groups of figures including a woman with a donkey and a goat.

This is a bodycolour version of the watercolour made for Sir Jospeh Banks of the same subject (RCIN 914551). A pencil drawing of the same subject, without figures, is in the Staatliche Museen, Greiz (E 462). Sandby made many watercolours of Windsor Castle and the surrounding area, often capturing the informality of life in the Castle grounds.

The Salisbury Tower built between 1227 and 1230 was known in the eighteenth century as the Chancellor's Tower, as the residence of the Chancellor of the Order of the Garter. The numerous additions to the inner face of the tower were removed during Edward Blore's restoration in about 1840. This area of the castle was remodelled in the nineteenth century.