Admiralty returns and reports on trials of South Wales coals,
- L2/4/2.
- File
- 1848-1877.
Part of Monmouthshire and South Wales Coal Owners Association Records,
Results of trials of South Wales coal suited to the Steam Navy, carried out at Admiralty Dock Yards, 1848-1877; Report of the Royal Commissioners appointed to enquire into the spontaneous combustion of coal in ships, 1876.