Plates 111 and 117 of G. Troili, "Paradossi per praticare la prospettiva senza saperla," Bologna 1683

Half-way through the ten years (1709–19) that William Kent spent visiting the major artistic centres of Italy, he kept a sort of diary (1714–15). William Kent, Italian Diary (1714–1715), in the possession of the Bodleian Library, Oxford (MS Rawl. D.L. 1162). This precious manuscript, whose true value has...