End bearing disc - finished etched plate

On of six end-bearing plates for SINS gas bearing gyros showing the etching procedure. Finished etched plate.

Object Details

ID: ACO1428.6
Type: End bearing disc - finished etched plate
Display location: Not on display
Creator: Unknown
Date made: Unknown
Credit: National Maritime Museum, Greenwich, London, Admiralty Compass Observatory
Measurements: Diameter: 38 mm;Overall: 4 mm