Box containing eight folders/books of letters and documents:

- one folder containing correspondence regarding new construction programme for large convertible coastal craft.
- one folder containing correspondence regarding MTB/MGB P5701 J.S White & WPS.
- one folder containing details about bombing trials against 'Hawkins', 1948.
- one book containing a list of drawings with Belfast on the front cover.
- one folder containing details about long fast patrol boats.
- one folder containing details about protective plating.
- one folder containing a Yarrow research department report.
- one folder containing details regarding the principles and design of the cappel pivoted gravity davit.