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.

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.