A watercolour and bodycolour drawing of a view of the north front of Windsor Castle, seen from Isherwood's Brewhouse on Datchet Lane. A courtyard of several wood and brick barns and stables. In the foreground, a man with a wheelbarrow. Smoke is billowing from a chimney on the left. Many barrels scattered around the courtyard, with horses and carts. Mounted on a sheet of paper with a brown ink line border. On the verso in pencil, possibly in the artist's hand, 'View of the Castle from the Gateway of the Brewer's Yard in Datchet Lane'.

The high level of finish in this bodycolour suggests that it could be that exhibited at the Society of Artists in 1765. There are two other versions of the same subject in the Royal Collection (RCINs 914595 and 452667). A pencil drawing of the same subject is in the Staatliche Museen Greiz (E 505), and an etching was published by Sandby in 1780 (for example, British Museum 1904,0819.599). Other related drawings are in the British Museum (1904,0819.89) and at Christie's (sale, 17 November 2005, lot 46).

The brewhouse in Datchet Lane was owned by the Isherwood family for much of the eighteenth century. The site was still in use as a brewery at the start of the twentieth century. The stables in the middle ground were replaced in 1799 by Travers' College; these buildings are now used by St George's School.