Photographs, diaries, correspondence, maps, journals, publications, annual reports, typescripts, articles relating to Papua New Guinea by Arthur Lyons, John Murphy, Daphne Winnifred Lyons, and others.

Twelve quarter plates (3¼ x 5¼ inches), held in six mahogany block-form double dark slides. The double dark slides are engraved with numerals on top right corner of each side, sequentially numbered from 1 to 12. The slides are arranged in a row and housed within one of the two compartments of the leather carry case.