Design for a church to be built on the banks of the Nile in Egypt:
-ink and watercolour (brown, blue) sketch on paper
-loose
-11.3 x 7.8 cm
-[on sketch] 'design for a church / to be built on the / banks of / the Nile' (ink note)

Portfolio entitled 'Drawings Various / by JB and other hands.'.

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, crossed out) / 571 (initially 582, partially crossed out) / 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

Portraits of Margaret of Austria and Joanna of Castile:
-pencil sketches on paper, mounted on card
-loose
-[left] 7.3 x 10.7 cm, [right] 7.3 x 10.5 cm (21.2 x 14.2 cm with mount)
-[on left sketch] 'Marguerita de Austria' (pencil note)
-[on right sketch] 'Juana hija de los / Reyes Catolicos' (pencil note)

Woman holding infant:
-pencil sketch on paper
-loose
-28.3 x 39.2 cm

Two infant heads:
-prints on paper, mounted on paper
-loose
-[upper] 6.9 x 8.1 cm, [lower] 7.6 x 8.9 cm (13.1 x 25.3 cm with mount)

Four women contemplating a bust:
-ink (blue) sketch on paper
-loose
-9.9 x 14cm

[Top] Sketches of types of female figures; [middle] caricatures of man and woman; [bottom] caricature of man (perhaps Bonomi himself) by pyramid:
-ink and pencil sketches on paper, mounted on blue lined paper
-loose
-[top] 13.5 x 6.5 cm, [middle (folded)] 5.6 x 6.6 cm / [middle (unfolded)] 5.6 x 13.1 cm, [bottom] 12 x 7 cm (17.4 x 22 cm with mount)
-[on top sketch] 'La belle taille ronde' (pencil note)
-[on verso of middle sketches] calculations (pencil note)

Portraits of Jacomo de Cachiopin (1575-1642) [upper left], Justus Sustermans (1597-1681) [lower left], Jacques du Broeucq (c. 1505-1584) [upper right], and Paulus Pontius (1603-1658) [lower right] originally by Antoon van Dyck (1599-1641), copied from engravings in Icones Principum Virorum / The Iconography:
-pencil drawings on paper, mounted on paper with ink and ink (grey) wash frame
-mounted
-13.4 x 15.6 cm (22 x 24.7 cm with mount)
-[on drawing] '99 / 92 / 73 / 83' (pencil notes)
-[on mount] 'J. DE CACHOPIN.' (ink note)
-[on mount] 'J. DE BREUK.' (ink note)
-[on mount] 'J. SUTTERMANS.' (ink note)
-[on mount] 'P. PONTIUS.' (ink note)
-[on mount] 'a / 5.-' (pencil note)

Seldeu's Cottage:
-pencil sketch on paper
-loose
-25.5 x 17.5 cm
-[on sketch] 'Seldeu's Cottage' (pencil note)

Coastline view of the Cabo de Gata in Spain:
-watercolour on paper
-loose
-9.6 x 7.6 cm
-[on sketch] 'Cape de Gat NW' (ink note)

Two views of the Cabo de Gata in Spain and sketches of boats:
-pencils sketches on paper
-loose
-14.7 x 22cm
-[on sketch] 'GAT NE 9 miles' (pencil note)

Five figures on a boat:
-pencil sketch on paper
-loose
-12 x 9.5 cm

Pier and boat:
-pencil sketches on paper
-loose
-12 x 21.5 cm