The box pictured below came to me a couple of years ago. Apparently three were found together, all identical. The box itself is blue gray with the typical steel reinforcements along the two bottom edges. The lable is blank and is a light bluish-tan color. The label is unusual in that it wraps around the ends of the box. There is no under label.
The bullet is a normal ogive 124gr (8g) magnetic (sorry the tip is cut off in the photo) This would indicate manufacture probably around 1916 (although RM S used this bullet in late 1918, MW used it in mid-1917 and Geco used it in 1917 & 1918). It is possible these are post war loads from the period immediately after WWI.
An advanced European 9mmP collector offered the opinion that they look like MW production. I don’t have an opinion on who made it except it is clearly WWI period German.