OK Phospherus32 all the Mauser police P.38s received the Eagle over N proof because they were going to the Poletzi not the Wehrmacht. The L was the first letter of the waffenampt inspector's last name and has nothing to do with the Luftwaffe. Same for the Eagle F. You will also find the Eagle L on Mauser HSc's destined for the police. These inspectors for Mauser were located in an office at the Mauser plant in Oberndorf AM Neckar. Sauer and Walther shared a Police Waffenampt inspector. That one stamped Police PPK's and Sauer 38H's with Eagle C and the Mauser inspector Eagle F stamped the Police PP's only at the Walther plant. The Navy hand guns were all stamped Eagle M, not an inspector for police destined guns. I hope this straightens out the confusion on the eagle L,F,C and M.