Lithograph, signed and dated and inscribed 'E.A.' in pencil, an artist's proof aside from the edition of 300, on wove paper, with full margins.

Screenprint, signed and titled in pencil, labelled 'Artists Proof' .

Digitally generated image of Robert Hooke. This was the winning entry of the 'Portraying Robert Hooke' competition run by the Library of the Royal Society in 2003 to mark the tercentenary of Robert Hooke's death. The prize was donated by the Royal Institution of Chartered Surveyors. One of an edition of six.

Lithograph printed in colours, from an edition of 3,000, on wove paper.

Produced by Chris Clarke, Art Master, whilst on sabbatical.

Titled, dated and signed by the artist in pencil with a dedication to 'Westminster Etching Room'.

Signed by the artist.