Markings

[goldwing]

Frank has a great posting (Difficult Military Mausers To Find) and I think that I have one Mauser that has the marks for a rare model. Where can I find a photo, print of these markings and what the letters mean. I do have Still's "Third Reich Lugers" but still need some help in the right direction. I am a newby and a dummie. Thanks, Bill Hughes