SOURCE: George Adams. Geometrical and graphical essays, containing a description of the mathematical instruments used in geometry, civil and military surveying, levelling and perspective (London, 1791), p. XI
NOTES: This caricature probably relates to Lutyens's dispute with Baker during the designing of the Viceroy's House, New Delhi, around 1914. The conflict between the two architects arose around the positioning of the structure and the gradient of the approaching road, which did not allow for an unobstructed view of the Viceroy's House. This drawing is signed by W.H. Nicholls, who was the architect of the Imperial Delhi Committee from 1913 to 1917.
NOTES: The design features vignettes of Salisbury Cathedral, Laon Cathedral, Bamberg Cathedral and the Basilica of San Marco, Venice. The decorative border includes illustrations of Medieval architects, masons and sculptors at work.
NOTES: The architect Rodney Tatchell may have used this T-square when making the drawings for his essay 'The Manor Houses of Sussex', which was awarded the RIBA Silver Medal in 1931.