I found this PET DAN KREBS bayonet years ago in my grandfather's tool box, hid it away for years and just now found it again. I did some research on it but didnt find too much. Id like to know more about it and the company that made it. Also I cant seem to find the same version of the marking on the blade....all I have seen are a more standard shaped shield and some have words and others don't but I have not found the wavy shield. Also who would have been issued this bayonet?