Box containing rolled trial reports pertaining to the following ships: 12 for HMS Neasham (IMS 49) (Yard No 5461), 4 for JSW shipyard plans, 10 for IMS Type 2 Kamewa, 5 for IMS 97 (Yard No 5459), 53 for HMS Powderhan (IMS 57 Yard No 5464), 16 for Inshore Survey Craft, 1 for Sarnia, 7 for HMS Yaxman (IMS 80), 9 for Yard No 5415, 4 for various vessels, 8 for IMS 80, 7 for very small vessels, 3 for Foden, 8 for HMS Bold Pioneer, 1 list of boats with modified HD gear, 5 for HMS Woldingham (Yard No 5460), 2 for 63' RAF Pinnaces (Yard No 5491-2) and 5 for HMS Downham (Yard No 5455)