This is not rocket science. Ignore the marking !
Measure the distance between the guard screws, that will tell you what you have.
"Mauser bolt action rifles have been produced for over 100 years in a wide variety of calibers, from many manufacturing plants all over the world. Most of these guns have several critical dimensions in common, allowing us to group them as Small Ring, Yugo and Large Ring Mausers.
Small Ring Mauser - Receiver measures 1 1/4� on the front receiver ring and 7 5/8� center to center on the trigger guard screws. Fits most models: 93, 94, 95 & 96 rifles and carbines.
Large Ring Mauser - Receiver measures 1 3/8� on the front receiver ring and 7 7/8� center to center on the trigger guard screws. Includes most large ring actions as well as the Centurion FN, Parker Hale 1200, and the Santa Barbara. 98 bolt channels must be rasped in.
Yugo Mauser - Receiver measures 1 3/8" on the front receiver ring and 7 5/8" center to center on the action screws. Includes M48, M48a & M24 Yugoslavian. Bolt cut will also need to be rasped in."
