1918 T-Gewehr Bullets

[Patrick Chadwick]

There was a series of books written by Hans Helmut Kirst around a WW1 soldier, using the nickname 08/15.
The title of the novel "Gunner Asch goes to War" is, in the original "08/15 im Krieg".

To understand this choice, you need (yes, really!) to know that the 08/15 was such a common object for the PBI in WW1 that "08/15" became a byword equivalent to the British "bog standard", i.e. totally ordinary. Familiar to us grandpas, but not to the internet generation.