Here is a Casen XX 523-6 as pictured. This knife is from a shop that closed in 1985. This was taken home and oiled and loved all these years. This is a excellent knife as shown. This weighs 8.7 oz. This has not been used or carried or sharpened. This will make a nice addition to your collection. Gentleman, they do not get any better. Please see pictures and ask questions. I will combine shipping. I usually ship the next day after payment 5 days a week.