Burchett would have persuaded some of his students, many of whom became very eminent, to place a grid over the original engraving and scale up the image on to the canvas. This is a very standard procedure for many artists when transferring a preparatory drawing onto canvas, but in this particular case it would have demanded very good eyesight indeed. We employed a similar method using computers, simplifying the tasks to be undertaken and saving a great deal of time. The first objective was to find a means to get an accurate line drawing for each canvas. High resolution digital images taken from the engravings were enlarged to the scale of Burchett’s painting. These were divided into A3 sections, or tiles, and each row of the black and white images were converted into different colours, for easy distinction.