Pages 18 and 19 of John Graham's report book 1838-1845
Pages 70 and 71 of John Graham's report book 1838-1845
Pages 62 and 63 of John Graham's report book 1838-1845
Pages 64 and 65 of John Graham's report book 1838-1845
Pages 66 and 67 of John Graham's report book 1838-1845
Rear cover of John Graham's report book 1838-1845
Pages 54 and 55 of John Graham's report book 1838-1845
Pages 58 and 59 of John Graham's report book 1838-1845
Rear of front cover and first front flyleaf of John Graham's report book 1838-1845
Second and third front flyleaves of John Graham's report book 1838-1845
Plan 17, store on a rack. Arrangement.
Sketch 13. General arrangement, circular. Showing 30 variables, 5 barrels with reducing apparatus, punch card mechanism, printing apparatus. Notes introduction of great bevel wheel 18 March 1837.
Sketch of sectors for lifting the axes.
Sketch of the sectors for moving axes of store vertically.
Arrangement and rack of Plan 25
Carriage by vertical chain. Plan, elevation.
Lifters for selecting the multiple of the Multiplicand or Divisor. Plan, two elevations.
Sketch of wheels for reducing carrying figure wheel axes to zero and setting spiral axes. Sketch elevations.
Figure 1. Clutch et cetera for driving the adding axes. Plan, elevation.
Plan and section of an 8 inch figure wheel; hoarding carriage and framing plate. Plan, elevation.
Consecutive counting apparatus.
Carriage and method of setting spiral axes for a machine of 50 cages with two figure wheels in each cage. Plan, elevation, details.
Combinatorial and decimal counting apparatus comprising plan, elevation and description.
Centres of axes and pen sketches of lockings for Sketch 14. Arrangement.
Sketch of central wheel and principal framing. Plan, elevation.
Notation of units
Sketch of sectors for lifting the axes.
Sketch of some of the centres et cetera for Plan 16. Arrangement.
Plan 16. Arrangement, several partial arrangements, numerous notes.
Part of the end view of the Difference Engine
Notation of units
Sketch of a decimal counting apparatus. Plan, elevation, description.
Plan 27. Linear arrangement with letter notations.
Plan No. 24. Arrangement and rack, rearrangement or notes.
Locking motions for carriage column.
Elevation of arrangement 13 with some of the driving and directive. Elevation includes section of a barrel '65 bands 80 verticals'.
General Plan No. 23. Arrangement and rack.
Plan of an improved carriage by vertical chain, and a page of handwritten notes
Intended for engraving. Shows six barrels with reducing apparatus.
Plan of the left half to middle group for General Plan 28.
Sign apparatus for Plan 28a. Plan, elevation.
Plan of consecutive mill counting apparatus for General Plan 28. Plan, note.
Plan and elevation for the calculating part of the Difference Engine. Figure 1. Superseded. Consecutive carriage.
Sketch of an apparatus for advancing stereotype frames of the Difference Engine by cranks and backing them by weights. Superseded. Plan, elevation.
Axes D1 E1 for the left hand group of Plan 28. Plan, elevation.
Plan titled, 'Various arrangements proposed, examined and rejected between the rejection of Plan 27 and the adoption of Plan 28. Figures 1, 2, 3, 4, 9. Various', and a folded sheet of notes
Sundry axes and wheels for Plan 28.
First sketch of all the parts in plan of the right half to middle group of General Plan 28. Plan, elevation.
