Sketch of male head and obverse of ancient Greek coin with radiate head of Helios:

• pencil sketches/tracings on tracing paper
• mounted, together with Bonomi MSS 50.30-34 and Bonomi MSS 50.36-39
• 6.4 x 6.4 cm

Partial sketch of radiate head of Helios, probably obverse of ancient Greek coin:

• pencil sketch/tracing on tracing paper
• mounted, together with Bonomi MSS 50.30-38
• 6.1 x 8.0 cm

Exterior surface of fragment of basalt clepsydra of Philip Arrhidaeus, from Tell el-Yahudiya, now in London, British Museum, inv. EA 938, c. 320 BC (TopBib iv.58A) :

• pencil tracing on tracing paper
• mounted, together with Bonomi MSS 50.41
• 12.7 x 19.6 cm

Iraq. Nimrud (Kahlu). North-West Palace. Relief depicting a winged protective spirit facing left, wearing a three-horned cap and holding bucket and cone, c. 865-860 BC; sketch from gypsum slab left in situ or perhaps now in London, British Museum, not identified:

• pencil sketch on paper
• mounted
• 18.1 x 26.0 cm
• [on sketch] '1593' (pencil note)

Marble slab of the Amazon frieze of the Mausoleum of Halikarnassos, with a Greek warrior and two Amazons, one fallen (London, British Museum, inv. 1847,0424.9-10, c. 350 BC); adjoining slab in Bonomi MSS 51.7:

• pencil sketch on paper
• mounted
• 35.9 x 22.9 cm

Standing mother holding baby, with standing little girl:

• pencil sketch on paper
• mounted
• 11.5 x 18.0 cm

Design for a ceiling fresco, with nude men between cubic stone blocks:

• inked (brown) pencil drawing painted with watercolour on paper, with pricked marks for pouncing technique
• loose, adjacent to Bonomi MSS 51.9
• 37.7 x 27.4 cm

Mechanical system diagram:

• pencil sketch on paper
• loose, adjacent to Bonomi MSS 52.1
• 5.2 x 8.7 cm
• [on sketch] ' Pully / chain / sash' (pencil note)

Views of ruined conduit (or bath) at Kensington Palace, in the kitchen garden belonging to the palace, built about 1536 by Henry VIII's for Queen Elizabeth when a child:

• carbon sketches on paper
• loose, adjacent to Bonomi MSS 52.1
• 36.8 x 27.0 cm
• [on sketch] 'The Conduit / Kensington / July 1858' (pencil note)

Warrior slaying a male nude, with studies of hands:

• ink and pencil sketches on paper
• partially attached
• 22.8 x 18.4 cm

Profile view of standing male nude with hands upraised, with frontal sketch of face and other figures:

• ink and pencil sketches on paper
• mounted
• 17.1 x 26.5 cm
• [on sketch] '1817' (pencil note)

Two studies of female nudes:

• carbon sketches on paper
• mounted
• 33.0 x 20.6 cm
• [on sketch] 'Nollekens' (pencil note)

Four women in black descending stairscase:

• pencil and watercolour sketch on paper
• loose
• 29.5 x 23.3 cm

Country house:

• pencil sketch on paper
• loose
• 36.5 x 26.7 cm

Two profile views of male heads:

• ink (purple) sketches on paper, with hole-punch on top right corner
• loose
• 11.3 x 6.2 cm

Bust of man with large moustache and desk:

• pencil sketches on paper
• loose
• 11.2 x 17.8 cm
• [on sketch] '578 (initially 588) / 571 (initially 582) / 20 (underlined)'

Desk crowned with bust of man with large moustache:

• pencil sketch on paper
• loose
• 17.8 x 11.2 cm

Man grinding copper ore in Bolivia:

• pencil sketch on paper, partially glued to lined paper
• loose
• 6.8 x 12.7 cm (9.5 x 13.4 cm with mount)
• [on sketch] 'Grinding Copper ore / in Bolivia - / The stone is called / Quimballeta (underlined) / Indian word (underlined)' (pencil note)

Men grinding copper ore in Bolivia:

• pencil sketch on paper, partially glued to lined paper
• loose
• 12.7 x 6.8 cm (13.4 x 9.5 cm with mount)

Diagram with numbers:

• pencil sketch on paper, mounted on lined paper
• loose
• 3.3 x 6.5 cm (9.5 x 13.4 cm with mount)

Man with feathered hat and cloak holding a dagger:

• pencil sketch on paper
• loose
• 12.5 x 20.2 cm

Profile view of male bust:

• pencil sketch with ink (brown) wash on paper
• loose
• 10 x 9.6 cm

Woman in historical dress:

• ink sketch on paper, mounted on blue lined paper
• loose
• 10 x 12.6 cm (17.7 x 22.1 cm with mount)

Two sketches of women by window:

• pencil sketches on paper
• loose
• 22.6 x 17.7 cm

Two overlapping sketches of bearded male heads:

• pencil sketches on paper
• loose
• 13 x 18.7 cm

Classicised male figure, other sketches and notes:

• pencil and ink sketches and pencil notes on paper
• loose
• 13 x 18.7 cm

Three views of horse's head:

• pencil sketches on paper, mounted on pink paper
• loose
• [left] 5.2 x 5.7 cm, [middle] 4.2 x 6.0 cm, [right] 5.1 x 5.7 cm (19 x 6.4 cm with mount)

Anatomical studies (ribcage, shoulder and humerus):

• inked pencil drawings with ink wash on paper
• loose
• 18.2 x 22.7 cm
• [on drawing] 'S. Vertebrae of Neck - / C. Acromiun of Scapula - / H. Clavicle - / R. Sternum - / f. Head of Humerus - / K Humerus' (ink note)

Medals or coins and other sketches:

• ink sketches on paper
• loose
• 12.6 x 7.2 cm

Medals or coins and other sketches:

• pencil sketches on paper
• loose
• 12.6 x 7.2 cm