Fascinating, what a find! Particularly interesting for me as my grandad was a celebrated yacht designer and pioneer of marine play forming techniques for yacht hulls. His reputation was such that during WW2 he was told to lend his skills to de Havilland, in UK, Canada and briefly in USA. He also designed high speed patrol and rescue boats. The National Maritime Museum hold a large number of his yacht drawings, but there is virtually nothing to show for his work on Mosquito, Hornet and Vampire (fuselage). It is just possible that some of his work might be in this collection, time will tell...