SIGHT'S AND SIGHTING INSTRUMENTS.
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Director No 1. Dated 1917 made by Houghton -Butcher MFG Co Ltd.
Used by mounting it on a Field Artillery Director to refine the accurate calculation of a compass bearing in directional artillery, fire to within less than 5 degrees.
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RAF Reflector Gun Sight MK.111 N, dated 1944.
The Mk III series was one of the most successful reflector sights produced during the war, it was
used in nearly every turret in RAF Bomber Command , it was also adopted by the US Navy as the Mark 9
. The rear gun turret in the picture showing the Gun Sight is on a Wellington Bomber.
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Angle of sight instrument H.A.MK1 made by J.H.SEWARD LTD. dated 1916. An Important artillery tool combining a prismatic compass for direction with a clinometer (inclinometer) for measuring vertical angles, so gunners can calculate precise elevation and traverse for targeting enemy positions, and for anti-aircraft (AA) and field artillery to lay guns accurately.
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Rangefinder No 13 MK1V is still unknown to me, but it could be for an Anti Aircraft Battery.
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Clinometer field MK.V1. Dated 1941. The Clinometer was used for distance calculation
and for angle calculation of the field guns. A standard bit of gunners equipment who checked the elevation of field
guns before each shoot. The clinometer is also known as a Gunners Quadrant.
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SIEGE LAMP. This is candle powered, the candle being in a tube with
a spring plate which would keep the candle pushed up and in the same position as it burnt down. A boxed pair of lamps was issued
to artillery gun crews so they could sight their gun at night. The lamps would be placed on posts and the angle of the gun barrel to the lamp would be determined. Then when a bearing was required the gun layer could use a lamp's position as a known bearing. Made by T.E Bladon and Sons dated 1942. |
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