We are grateful to Susan Morris for dating these watercolours to 1797-8. The watercolours vary in quality, those of A ruined Castle above a Lake and A Horse drinking at the water's edge being the most accomplished. A.C.J. Wall was a Birmingham industrialist who formed his collection in the years immediately before and after the Second World War. His collection was of a more eclectic type than those of many of his contemporaries, and included some highly important furniture attributed to Gillows and to Thomas Chippendale, namely the Sheffield Park chairs, and a set of neo-classical dining-chairs attributed to Gillows which were bought in 1970 by the Metropolitan Museum of Art, New York. They were subsequently deaccessioned at Christie's New York on 12 October 1996, lot 71 ($508,500, 346,000).