Box containing thirteen folders/books of letters and documents:

- one folder for HMS 'Edinburgh'.
- one folder containing details about the all welded sloop HMS 'Seagull'.
- one folder containing details about ship fittings acquired for HMS 'Newcastle'.
- one folder containing details about damage to HMS 'Hunter'.
- one folder containing a report of trials of ANC installation in HMS 'Curacua'.
- one folder containing electrical trials for 'Witch'.
- one folder containing a list of spares for submarine 'Cachalot'.
- one folder containing correspondence for 'Prince Albert'.
- one book containing a report of the first of class trials of HMS Cachalot, 1938.
- thee books containing the first and second series of trials and appendix to the trials.
- one roll of diagrams and photographs of divebombing attacks.
- one roll of diagrams and photographs of B bomb explosions.