Pencil on paper, 34cm x 26cm. Front depicts drawings and descriptions of a vestibule in the Piazza Santissima Annunziata as well as "heavy stone ribs supporting groined vaulting" in the Refectory, San Marco, Florence, Italy. The back contains drawings and descriptions of the stucco ceiling of the Entrance Lodge, Certosa Di Pavia in Lombardy, Italy.