Davis Mark 3 Marine Sextant - 011 MOROSINI U/CH/B if you look inside the

if you look inside the butt splice you will see there is an indentation

And the operation is a snap: Simply set the course and the SP-80 takes the controls

This powerful cleaner contains no bleach and is safe on vinyl

and 12-inch HydroTough IPS touchscreen displays

Long Lasting

Davis Mark 3 Marine Sextant - 011 MOROSINI U/CH/B if you look inside theMark 3 Marine Sextant Sometimes referred to as a "lifeboat" sextant, the Mark 3 is an inexpensive training sextant. Yet this model has taken sailors around the world, too! It is full sized and has sunshades, but no optical magnification to help you find dim celestial bodies. Comes with instruction booklet.