19th-20th century, two in brass cases, one in a carved ivory case with tortoise ring and collapsible sundial (no cover); one in a celluloid case (no cover); a folding wood cased sundial and compass (underside with small hairline and later screw); a brass cased pocket barometer.

Wooden case 2 x 2 in.

Private Collection of an Antiquarian, Charlotte, North Carolina

Hairlines to ivory.