Details
A 19th century brass box sextant
Signed Watkins Charing Cross in leather case -- 7.6cm. wide; a planimeter in case; a staff mounted optical square by Carl Zeiss; an instructional sextant: another surveying instrument; a pocket compendium; and other items (6)
Signed Watkins Charing Cross in leather case -- 7.6cm. wide; a planimeter in case; a staff mounted optical square by Carl Zeiss; an instructional sextant: another surveying instrument; a pocket compendium; and other items (6)