Gr.Z.96,Brass and steel.Of the same type as Gr.Z.04.
There were two patterns of this fuze,one could be set for delay action,the other could not.
Used with,21 cm mortar,1883 pattern shell.
21 cm mortar,1896 pattern shell.
Gr.Z.96/04,Brass and steel.Of the same type as Gr.Z.04.
Can be set for delay action by means of a setting stud.
Used with,21 cm mortar,15 cm heavy field howitzer,15 cm heavy field howitzer '02 & '13,15 cm long gun,15 cm long gun with chase rings,15 cm gun with chase rings.
Source,Notes on German Fuzes and Typical French & Belgian Fuzes Second Edition.
Hope this helps.
Cheers,
Andy