Showa 28, 1953, 8th edition Published by Iwanami Shoten Author: Hosui Mononobe Hydraulics This is an incredibly old book. It's 70 years old. It was stored in a storage room. My late father used to read it when he was a civil servant. There are no notes, markings, or colorings inside. It was kept in a case, so I don't think it's sun-faded. The paper is old, so it might look sun-faded. The name and the name of the government office were written at the end of the book, so I have blacked them out. The case is also made of old paper, so it's hard to tell if it's sun-faded. Please check the condition in the photos. Would anyone be interested?