One of the more well known online price guides for collectible and hunting knives is the Kovels website. The price guide contains a wide range of manufacturers from around the world.
The Kovels website has a resource center and a marks guide. The marks guide helps you find the manufacturer marks and identify the year the knife was produced. A collector can view valuable knives up for auction from the homepage of the Kovels website. A person who is interested in collecting knives can also create an account to gain premium access to products for sale, but payment is required to become a premium member.