Inscribed (by George Bailey, Soane Museum curator 1837-60) A Design for a Summer Dining Room, made in Rome in the Year, 1780 / for the Bishop of Derry.

The Bishop of Derry's unofficial brief for the dining room indicated dimensions of 24 by 36 feet relating to the Palladians' geometric progression of 16:24:36 that corresponds to the ratio of 4:6:9. In this design, the dimensions when scaled off are 16 x 25 x 50 (38 without the bow). In the next drawing (2) the dimensions are 14 x 22 x 40 (34 without the bow). In drawing 3 the dimensions are 16 x 23 x 45. Drawing 11 has the dimensions 24 and 36 marked and the floor to ceiling height is about 17 feet.