combined time signature

[James E. Bailey]

Just out of curiousity, is there way to do either the clef or the time  
signature for real?
\version "2.11.52"
{
   \override Staff.Clef #'stencil = #ly:text-interface::print
   \override Staff.Clef #'text = \markup {\musicglyph #"clefs.G"  
\hspace #-1.7 \musicglyph #"clefs.G"}
   \override Staff.TimeSignature #'stencil = #ly:text-interface::print
   \override Staff.TimeSignature #'text = \markup { \musicglyph  
#"timesig.neomensural64" \hspace #-1.0 \lower #1.0 { \musicglyph  
#"three" } }
   \time 6/4
   R1.
}