Typescripts report by William Galloway on experiments at Penrhyndeudraeth with the newly developed explosive Steelite, with diagrams.

Papers relating to the campaign to prevent the closure of the Cambrian Coast line and for improvements to the the infrastructure of the line and train services. The files include correspondence with supporters, British Rail, Members of Parliament, local authorities and government departments, minutes of meetings, publicity material, press coverage, reports, statistical and financial information, papers relating to television and press coverage.