VERTCRS["Lagos 1955 height",VDATUM["Lagos 1955"],CS[vertical,1],AXIS["gravity-related height (H)",up,LENGTHUNIT["metre",1]],USAGE[SCOPE["Geodesy, engineering survey, topographic mapping."],AREA["Nigeria - onshore."],BBOX[4.22,2.69,13.9,14.65]],ID["EPSG",5796]]