This is the "Orange Book," said to be the sequel to the "Green Book," a famous collection of horn ensemble pieces. The size is the same as the Green Book, approximately 10.5cm wide x 15cm long when closed. There is one book each for 1st-4th horns. The 2nd-4th books are unused and have no folds or stains, but the 1st book has a small fold on a few pages due to a bookmark. Also, a thin name stamp (Shachihata) is present on the parts of all four books in the photos. If you wish, we can apply a sticker of your choice before shipping.