Elevation of Difference Engine No. 2.
The general plan of Mr. Babbage's Great Calculating Engine. Arrangement and rack, details, et cetera.
Plan of the Analytical Engine without lettering.
Division. Sheet 9 of 15.
Plan of the Difference Engine No. 2.
Mill counting apparatus. Consecutive elevation.
Rough notes and sketches, including drawings of Babbage's game 'Tit Tat Toe'.
Scribbling Book Volume XIV. Travelling Scribbling Book.
Sketch of drilling machine. Details.
Solution of two simultaneous equations
Hoarding and anticipating carriages.
Figure 1. Plan, elevation and detail.
Untitled. This drawing is a cardboard model.
Arrangement and rack of Plan 25
Complete trains of the Analytical Engine
Analytical Engine (appears incomplete).
Drawing of warning and carrying arms
Draft notation of the Difference Engine No. 2
Drawings of Difference Engine No. 1
Scribbling Book Volume V. Important matter of history in the Analytical Engine.
Elevation and end view of part of general framing. Plan.
Carriage and method of setting spiral axes for a machine of 50 cages with two figure wheels in each cage. Plan, elevation, details.
Plan of left half of middle group for General Plan 28.
Untitled, appears to represent the printing mechanism.
The first drawing of the circular arrangement of the new engine
Sketch elevation of the driving and directive of the Analytical Engine.
Plan of operation and variable card counting apparatus. Suited to Plans 28 and 28a.
Addition and subtraction. Multiplication by stepping without table (to be done in store). Division by powers of ten (stepping done in store).
Plan 27. Linear arrangement with letter notations.
Vertical movements of axes ordered by left barrel for multiplication compiled in part from a genealogical notation. Sheet 3 of 3.
General plan of Analytical Engine, quarter size.
Scribbling Book Volume X
Multiplication. Sheet 1 of 3.
Sketch of central wheel and principal framing. Plan, elevation.
Scribbling Book Vol XVI. Various analytical developments adapted to engine.
Difference Engine index of parts.
Sketch of a plan for reserving the carriages.
Division. Sheet 5 of 15.
Skeleton of vertical motions for all operations. Right groups. Multiplication and division from 372 Sheet 1. Sheet 1 of 3.
![Untitled. [Vertical positions of some of the wheels of Plan 28a. Notation 348 and 331 cycles]. Sheet 12 of 13.](https://coimages.sciencemuseumgroup.org.uk/221/221/large_thumbnail_bab_f_352_12_0001_vertical_positions_of_some_of_the_wheels_of_plan_28a_1845_oct.jpg)
Untitled. [Vertical positions of some of the wheels of Plan 28a. Notation 348 and 331 cycles]. Sheet 12 of 13.
Notation of the Analytical Engine
General plan of the Analytical Engine, half size.
Vertical positions of the wheels of Plan 28. Sheet 6 of 23.
Parts of the slide for Planing machine. Plan, elevation.
Parts of slide for the Planing machine. Plan, elevation
Multiplication, division and addition for verticals. Sheet six of six.
Addition No. 4. Carriage No 6. Elevation and plan.
Verticals of the counting apparatus barrel number 1. Sheet 8 of 9.
