Tangent screw

Metal tangent screw for a dip sector.

Object Details

ID: NAV0008.1
Type: Tangent screw
Display location: Not on display
Creator: Unknown
Date made: Unknown
Credit: National Maritime Museum, Greenwich, London
Measurements: Overall: 33 mm; Diameter: 24 mm
Parts: Dip sector (Instrument for Measuring the Dip of the Horizon)