古信楽 (Koshinraku) refers to an ancient style of pottery that originated in the Shiga Prefecture of Japan. This traditional ceramic art is known for its rustic charm and earthy tones, often featuring natural glazes that enhance the texture and color of the clay. Koshinraku pieces are typically handmade, reflecting the artisan's skill and the unique characteristics of the local materials. The history of 古信楽 dates back to the Heian period, around the 8th century, when it was first developed. It is closely associated with the Shigaraki region, which is famous for its high-quality clay. Today, Koshinraku pottery is appreciated for its aesthetic appeal and is often used in tea ceremonies and as decorative art.