Sextant - Brass, Wood - Rare Antique Sextant

Raro Sestante Antico H. Hughes & Son London (1903-1939) - Scatola e Certificato Coevo Matricola 7567
Fascinating antique nautical sextant original from the illustrious British manufactory H. Hughes & Son Ltd, London, directly inscribed on the main arc (graduated arc).
A piece of extremely historical and collectible interest: the instrument comes complete with its original solid wood case, inside which the original Certificate of Examination and Testing dated 1939 is perfectly preserved (issued in Copenhagen shortly before the outbreak of World War II). The serial number impressed on the metal of the sextant (7567) matches 100% with the one shown on the paper certificate, guaranteeing absolute contemporaneity and authenticity of the set.
Condition and details:
Mechanical body: Excellent and robust, in brushed brass with the splendid patina of time due to sea use.
Optics and mirrors: The index mirror, the fixed horizon mirror, and the magnifying lens mounted on the movable arm for reading the scale are intact and in perfect working order. All sun filters in fan form (both circular front filters and square rear filters) are present and functioning.
Accessories: Includes the original wooden box with green felt and an original darkened protective eyepiece (Sun Cap) made of surviving brass. The tubes for interchangeable telescopes are missing.
The Case: The central recessed lock was removed at the time (likely due to key loss or mechanism blockage during wartime use). The box closes securely via the two original side lever latches that attach to their respective pins. The external brass carrying handle is original, solid, and fully functional.
A piece of true maritime and scientific history from the 1930s, perfect for discerning collectors or as a prestigious furnishing object.