This is a set of the original color Japanese insect pictorial books, Volume 1 and Volume 2. It was a gift. Both have yellowing. Condition: Both cases have yellowing. Volume 1: There is a crease in the middle. A newspaper clipping is pasted on the last page, leaving marks. The pages are more yellowed than Volume 2. Volume 2: There is handwritten text on the first page. I haven't examined the contents in detail. There is a possibility of writing inside, so please purchase only if you are okay with the current condition.