The Luger in question is not mine; I saw it at an auction. Since I am not sure if I can disclose its full number, I will only show the first three digits (e-mail me for full number). It is serial number 159Xe with DE/211, S92 & DE. The gun is not Police nor Navy marked. I also found the very useful link "G DATE SERIAL NUMBERS, WITH KM AND POLICE DATA, AND ACCEPTANCE STAMPS" in this board, which answered my question.