german box 7,5cm le JG 18 Ub Al

[fert]

Hello,
I like to share this box, a label indeed.


Anyone could translate this warning?

here the shell



best regards

 

[Hoeksel]

I think it means that the zinc fuse is only allowed to be used for an observation shot.

 

[Alpini]

Zinc fuzes are heavier than aluminium and lighter than brass fuzes

Fire only if the shot (the target) can be observed.

The lower two lines are about range deviation compared to firing tables for shells with aluminium and brass fuzes.