Details
A micrometer sextant
The black brass 'A' frame stamped on the arc Heath Navigational Ltd London S.E.9 and numbered 64074, the scale divided 5°--0°--125°, seven shades, two mirrors and telescope, brown bakelite handle, contained within a fitted box with accessories, Hezzaninth certificate of examination in lid dated 13th November 1964
See illustration
The black brass 'A' frame stamped on the arc Heath Navigational Ltd London S.E.9 and numbered 64074, the scale divided 5°--0°--125°, seven shades, two mirrors and telescope, brown bakelite handle, contained within a fitted box with accessories, Hezzaninth certificate of examination in lid dated 13th November 1964
See illustration