Bare Needle Type

An image showing 'Record Shot - Do not reproduce.'

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Mining compass in wooden box. Dia. 5.25" (13.4cm) Brass, graduated quadrantally 0-360 degs. Bare needle type. Card fitted with two spirit levels. Two sight vanes (folding). Fitted with vernier for azimuth readings. Hedley type invented in 1850.

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Object Details

ID:	NAV0372
Type:	Mining compass
Display location:	Not on display
Creator:	Davis & Son
Date made:	1914
Credit:	National Maritime Museum, Greenwich, London
Measurements:	Overall: 50 mm x 290 mm x 180 mm
Parts:	Bare Needle Type Mining compass vernier (NAV0372.1) Mining compass vernier fixing knob (NAV0372.2) Mining compass screw (NAV0372.3) Bare Needle Type (Mining compass box) (NAV0372.4)