This is a handbook on metal heat treatment technology from Nikkan Kogyo Shimbun. I bought this handbook when I was young to study. I think it's a rare handbook that's hard to find now. However, there are some stains on the top of the book and on a few pages in the spread, as shown in the photos. The inside doesn't have any noticeable scratches or dirt, but since there are many pages, I haven't checked each one individually. I think it's in good condition for an old handbook, but since opinions on cleanliness vary, please understand this and refrain from purchasing if you are sensitive or seeking perfection. Dimensions: Height: 23 cm Depth: 17.5 cm Width: 7 cm It's quite heavy. Please feel free to comment if you have any questions.