Thanks tonyH, had a good look through my copy of Warships For Export, there was approx a page and a half on the subject of Giovanni Bausan with a rough GA drawing and a picture. Nothing really else which hasn't been mentioned or linked to on this thread. I've got a GA art picture coming from the USA and a couple of postcard size pictures coming via an auction site.
I enjoyed meeting you, and sailing with you at Wicksteed, your little French M4 submarine is a little gem, and your Descartes has many unique ideas I might be incorporating into my future projects, beautiful workmanship. I love doing research on the older vessels, it's the scarcity of the info but when you find something it's fantastic!
Thanks Dodes for the link to Battleships-cruisers website, Elswick did build a couple of warships for the Royal Navy, the Victoria, Invincible and Malaya being primarily the ones ordered by the Admiralty. However the many later vessels were bought by the RN from the shipyard instead of the original countries usually Chile, Brazil, Turkey or Argentina. Ships were the Eagle, Canada, and Swiftsure. They were usually bought at time of probable war or when the original country who placed the order couldn't afford them.
Thanks Frank for the link too, the picture they've used is the one I've bought from the USA on fleabay.
In the foreword of the book, Warships For Export, it mentions that the Vickers (owner of Armstrong) archive is stored in the Woolwich Arsenal which is part of the National a Maritime Museum with technical information also available at the Tyne and Wear Archives in the University in Newcastle. Might try them both for drawings.