Belonged to wives granddad. Marked Schrade Walden NY USA on one side and 735 stainless on the other. He was a 30 year Navy guy, enlisted in 1940, and bought this in 1950- first year they were made. That is about all I know. He was not a Bowswains mate but rather a carpenter mate. Maybe those of you among us who know can contribute as to how they were used.