\relative c'' {
  c2.
  % construct the symbol
  \override BreathingSign.text = \markup {
    \override #'(direction . 1)
    \override #'(baseline-skip . 1.8)
    \dir-column {
      \translate #'(0.155 . 0)
        \center-align \musicglyph "scripts.caesura.curved"
      \center-align \musicglyph "scripts.ufermata"
    }
  }
  \breathe c4
  % set the breath mark back to normal
  \revert BreathingSign.text
  c2. \breathe c4
  \bar "|."
}