English, c.1930, engraved 'STANDARD YARD, COUNTY BOROUGH OF BURNLEY, DEGRAVE & SHORT CO LTD MAKERS LONDON', the comparator standard yard measure, constructed of highly finished brass with lignum handles, with sliding adjustable microscope viewer for determining fine readings along the engraved scale, in a French polished mahogany case with a brass plaque engraved the same, case length 114cm