[6] In 1768, Perez Burdett moved from Derby to Liverpool to create a map for Lancashire as he had successfully done for Derbyshire.

[4] Burdett was so successful at identifying and exploiting his new contacts that he invited his friend, Wright, to join him in Liverpool.

This was a successful move for Wright too and he quickly received commissions from the local gentry and merchants, however it was Burdett who founded a Society of Artists in 1769 in Liverpool and became its first president.

[7] Burdett brushed acid direct on to an aquatint ground, only using varnish to stop-off large areas of a single tone.

[7] Burdett published a first aquatint based on an image by John Hamilton Mortimer, but he eventually sold the process to another cartographer, Paul Sandby.

There are extant three known images by Burdett, Banditti Terrifying Fishermen of 1771 and Skeleton on a Rocky Shore, both after the painter J.H.

It appears that Greville had received incomplete information, and Sandby found it difficult to produce a plate by Le Prince's method of sifting the rosin over the surface.

Benjamin Franklin wrote to Perez Burdett on 21 August 1773 "I should be glad to be inform’d where I can see some example of the new Art you mention of printing in Imitation of Paintings.

[12] In 1774 he left Liverpool, to escape debt, and entered the service of Charles Frederick, Grand Duke of Baden.

[3] He was a correspondent of Benjamin Franklin[13] who was an early member of the Lunar Society[citation needed] which included such figures as Erasmus Darwin, John Whitehurst, Matthew Boulton, Joseph Priestley, Josiah Wedgwood and James Watt.