Z.d.Z. 25

[Bellifortis]

Today, while reading in some WW 2 german manuals, for the second time I read about a "Zug-und Druck-Zünder 25"= Z.D.Z. 25. The first time I thought, that this was a misprint. In this manual, dated 1939, it said that this fuze / igniter was no longer in production. Never have I seen or heard about this fuze before. Is there anyone here who knows anything about this fuze or may be even has a picture or drawing ? According to the model No. I assume, that this fuze was introduced in 1925 , but was outdated by 1939. The Z.D.Z. 29 is quite common and is one of the earliest german mine fuzes that I know.
Regards,
Bellifortis.

[Bellifortis]

Hallo,
nobody here seems to know this minefuze that apparently was in use in germany in the interwar-years, in the 1930's. I have never seen it myself. Now I found the above "Package Label" for this fuze. I do not know where to search for a picture. There must be somewhere a manual about this fuze. Any idea ?
regards,
Bellifortis.