- Medium
- sketchbook with 23 sketches (including one on inside front cover) in graphite, pen and black, brown, and gray ink on lined paper; 4 sheets of writing and calculations; 23 blank page; four sheets are missing.
- Dimensions
- book: 24.2 x 18 x 5 cm (9 1/2 x 7 1/16 x 1 15/16 in.)