Krigner universal équinoxial dial

A fine Krigner gilt-brass pocket équinoctial compas sundial.
The silver hour ring engraved 4-12/1-8 with quarter-hour divisions,weighted gnomon,the plummet suspended in a engraved hinged support,the latitude selector dial engraved 30 degrees-60 degrees with 1 degree subdivisions operating via spring level and cams to adjust the equinoctial hour ring and fitted in an oval case.