Rectangular mirror in tube

Rectangular mirror in black metal frame, pivoted in a cut out black metal cylinder.

Object Details

ID: ZBA0771
Collection: Astronomical and navigational instruments
Type: Rectangular mirror in tube
Display location: Not on display
Creator: Unknown
Date made: Unknown
Credit: Misc. National Maritime Museum, Greenwich, London, RGO Collection
Measurements: Overall: 83 mm x 70 mm x 50 mm