VERTCRS["Nelson 1955 height",
    VDATUM["Nelson 1955"],
    CS[vertical,1],
        AXIS["gravity-related height (H)",up,
            LENGTHUNIT["metre",1]],
    USAGE[
        SCOPE["Geodesy, engineering survey, topographic mapping."],
        AREA["New Zealand - South Island - north of approximately 42°20'S - Nelson vertical CRS area."],
        BBOX[-42.44,171.82,-40.44,174.46]],
    ID["EPSG",5766]]