A BRITISH WWII INVERTED AVIATION COMPASS for a reconnaissance aircraft, probably an Auster with an enamelled black ring marked with reversed 360°, and an adjustable mirror, grey painted, the side bearing a plaque with a pheon broad arrow mark 'REF. No 6A/1673', the edge annotated in marker 'THIS WAY UP' and 'TOP' with arrows.

Approximately 14cm high x 18cm wide x 14cm deep

Provenance: From a single owner collection of scientific instruments.

Dimensions: Approximately 14cm high x 18cm wide x 14cm deep