The box says "Scharfe Patronen M/71," So I think it is safe to assume that these are for the Model 71 and Model 71/84 Mauser. 11.15x60R. No clue about value.
It is interesting that both Bob in Ohio and Clay's boxes say M/71, but both appear to be flat tipped bullets. This is hardly a scientific sample, but it leads me to suspect that at least in some instances the boxes of flat tipped ammo were not specifically marked 71/84.All new production probably would be for flat nosed since the 71/84 was in service: It's possible that this box got mixed up down the line somewhere- how long has it been in collector hands? They probably would have changed the designation on the box given the possibility of a disaster if one put 71 rounds into a 71/84.