Sauer Shotgun Model?

[Robert Hipple]

This is a Sauer Hawk (Habicht) shotgun, made entirely by machine from Krupp steels. It is a cheap standardized shotgun with an automatic safety. It was available in 12-gauge. 16. 20, as well as in small sizes with English stock or pistol stock.
Barrel locking is triple locking.
The safety is automatic (on the barrel shank). The triggers were made in one piece with strikers. There were no cocking indicators.
Hawk” was available in 12, 16 and 20 caliber. The weight of the 12-gauge shotgun was 3.1-3.2 kg. The “Hawk” model became the basis for the development of the series of triggerless shotguns with horizontal barrels and Anson-Dilley locks.

Your shotgun is made with ejector, judging by the markings of 12-gauge with 65 mm chambering (marking 12/65), was manufactured in December 1944 (marking 1244) and tested on nitro powder (marking N with eagle).