Sketch of a bird
Sketch of a bird in an egg, sitting on a perch [or in an egg cup]. Caption reads 'anxiety'. Crayon on tracing paper
Sketches of lines with 3D markings in green and red.
Sketch of a box with green and red 3D markings, in crayon.
Page of notations
Page with notations about a reservoir on either side, in pen.
Drawing of Monument
Print of a drawing of the Monument, London, covered with annotated tracing paper.