Davis Mark 15 Sextant

Many great features including 7 large sunshades, a 3 mm x 27 mm star scope and easy reading micrometer drum vernier scale that reads to 2/10ths of a degree. The Mk. 15 has a 18cm (7”) arc radius with 120 degs to –5 degs, half silvered mirror, plastic frame and case. 500 g.