You are offerding on a vintage Schrade Cutlery Co. Walden NY safety knife. Knife is right of of a collection I recently bought and never has been carried, or sharpened. This is a very early knife with patent dates of Dec, 21st 09, Sept. 18th 10, and June 6th 16. Knife is exceptional and you will be hard pressed to find a better one. The opening features on both blades snap out like a trap. If you are looking for one for your collection, this is the one.Knife is appx 7 1/4\" fully open with both blades out, and 3 1/2\" closed.Please see my other sales for another one of these that is in pristine condition just as this one is.