I purchased this at a one-of-a-kind sale 5 years ago for 20,000 yen. The exterior is salmon pink calfskin, and the interior seems to be a leather that is no longer available, and it will age over time. It's a narrow size, so it's rare, and I bought it, but I'm not using it, so I'm putting it up for sale this time. No returns, and I'm open to price negotiations. Thank you.