MK1X AM BUBBLE SEXTANT , 1943

A Bubble Sextant is used normally on an aircraft to obtain the altitude of the sun or other celestial object, whilst keeping the unit level by means of bubble' in a chamber filled with liquid inside the unit. It also has a hook on the top in order to hang it in the Astro dome of an aircraft when available. See also Item A0910 Astro Compass Mk 2. The two were usually used together.

A1600