Cut Common Time signature

[Ritchie Fraser]

Hello all,

I am trying the engrave a Cut Common time signature (Capital C with a 
vertical line through it) and the beginning of the stave and can't find 
out how to achieve this.

I have scoured the lilypond docs online but can't find any examples or 
the syntax to use.

"Cut Common" appears in the glossary (alla breve) but does not seem to 
be in the syntax guide:-(

Is this time signature just a brass band thing?

Any help will be most welcome.

Kind regards

Ritchie