Records of Humber Conservancy and the Humber Ports (Records deposited by Associated British Ports and its Predecessors) > Humber Conservancy > Humber Conservancy Board: Technical drawings of Buoys, Launches, Lightvessels and other ships submitted to the Board by Manufactures and related papers > Humber Conservancy Board: Pilot Launches used by the Board > Yard No. T. 903 'Commander A. J. E. Snowden' Pt. 1: Plans for the pilot launch