Blade length: approximately 20.0 cm. This is a rare brand not often seen in Japan. It was passed down from family. The model number and purchase date are unknown. In my subjective opinion, it appears unused, but it may have been used for test cutting. Please be aware of minor scratches that are not noticeable. This is a personal item and the condition is based on my amateur assessment. Please refrain from purchasing if you are looking for items sold in stores, are unfamiliar with purchasing kitchenware on flea market sites, or are overly concerned about condition. If you have any concerns about the above condition, please refrain from purchasing. The photos provided are all that is included. Sold as is.