VERTCRS["S_JTSK/05",
    VDATUM["D_S_JTSK_05"],
    CS[vertical,1],
        AXIS["ellipsoidal height (h)",up,
            LENGTHUNIT["metre",1]],
    USAGE[
        SCOPE["Not known."],
        AREA["Czechia."],
        BBOX[48.58,12.09,51.06,18.86]],
    ID["ESRI",115796]]