A guide to British Shipping Company China of the 19th & 20th centuries titled MARINERS MEMORABILIA by Peter Laister. Volumes 1 and 2. They are fully colour illustrated and give brief historical details of the companies and the trades they were involved in.
Cover price is £23.50 for each book.
I have used these books extensively for research and they are a wealth of information. I don't think they are particularly easy to source which is why i bought them, to pass them on to others with an interest.