Hallo,
I can not help you and I'm even a bit confused, because I have not seen any literature about this fuze. An El.Zt.Z.(59)A has been introduced in Nov.1940 and is described in LDV 152 Part 23 and the El.Zt.Z.(59)B in Part 29. Both of this fuzes are shorter than yours. Both of these fuzes have electrical charging pins which yours does not have. Yours looks like a mechanically armed fuze (removal of a pin). Also the construction (long, slender tube-extension) is different to all other El.Z. I have no idea what munition this fuze was ment for. Also the marking, just (59), is strange. May be somebody else here can enlighten us. Being a 59series fuze, I assume this to have a fixed pyrotechnic delay, that is ignited upon release of the munition.
Regards,
Bellifortis.