The original draftsman's drawings for the area around St. Columb Major, Cornwall, made in 1810.
Ụlọ ọrụ na-ahụ maka eserese nke mba bụ ụlọ ọrụ na-enwekarị ọha na eze, na-emepụta mapụ topographic na ozi ala nke obodo. Ụfọdụ ụlọ ọrụ na-ese map nke mba na-ejikwa okwu cadastral.