Davis Mark 15 Sextant

The Davis Instruments Mark 15 sextant navigation tool includes seven sunshades and a micrometer drum Vernier scale that reads to 2/10 of a minute. It has a 7-inch frame radius that is graduated from 120 to –5 degrees. This sextant navigation tool also comes with a traditional half-silvered mirror. This model comes with a durable hard case.