The Astra IIIB Sextant w/WH Mirror Specialty Flags a trained cartographer updates each

a trained cartographer updates each chart to reflect the latest Notice to Mariners (NTM)

Tilbury to Margaret Ness is a standard nautical chart

Scale: 83074

2 Emergency Scenarios

The Astra IIIB Sextant w/WH Mirror Specialty Flags a trained cartographer updates eachThe Astra IIIB has somewhat revolutionized celestial navigation. Never before has such a high quality, accurate metal sextant been available at such a low price. Over 24,000 sextants of this model have been sold in the US alone in the past 27 years; far more than any other serious sextant. Its popularity has spread throughout the rest of the world as well, making it the the most recognized (and supported) sextant worldwide. Its low price, excellent