2026-09-27T22:17:20+01:00https://marinefinds.org.uk/datalabs/terminology/object/format/jsonhttps://marinefinds.org.uk/datalabs/terminology/object/format/xmlhttps://marinefinds.org.uk/datalabs/terminology/object113510168395353LEVELYAn instrument for establishing the horizontal line of sight and used in surveying. It usually has an eyepiece and an air bubble in a glass tube or dome.128P