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Date
True-course finder

True-course finder

1876
Direction finding (DF) receiver

Direction finding (DF) receiver

1953-1963
Decca decometer

Decca decometer

1959-1969
"Trident" electric log

"Trident" electric log

1861-1873
Projection Moving Map

Projection Moving Map

Star Finder and Identifier

Star Finder and Identifier

1942
Navigation light indicator

Navigation light indicator

1944-1954
Course-to-Steer box

Course-to-Steer box

1950-1954
"Trident" chart house receiver

"Trident" chart house receiver

1861-1873
Engine direction indicator with rotary switch

Engine direction indicator with rotary switch

1953-1954
Ferranti Inertial Navigational Unit

Ferranti Inertial Navigational Unit

1960-1980
Sunrise/Sunset Table

Sunrise/Sunset Table

1939-1945
Gee Counting Card

Gee Counting Card

1943
Gyro-magnetic Compass Gyro Unit

Gyro-magnetic Compass Gyro Unit

1930-1947
60/30 Degree Set Square

60/30 Degree Set Square

1939-1945
Chart comparison unit, type C.Y.5 no. 13

Chart comparison unit, type C.Y.5 no. 13

1945-1954
C-Thru Plotting Scale

C-Thru Plotting Scale

1940-1945
Weems Aircraft Plotter Mark 2

Weems Aircraft Plotter Mark 2

1935-1945
45 Degree Set Square

45 Degree Set Square

1939-1945
45 Degree Set Square

45 Degree Set Square

1939-1945
Gee Counting Card

Gee Counting Card

1943
Course-to-Steer box

Course-to-Steer box

1950-1954
Gyro-magnetic Compass Master indicator

Gyro-magnetic Compass Master indicator

1930-1947
Gyro-magnetic compass, Mark III, consisting of: 1) Detector 2) Master indicator 3) Pilot's compass 4) Control panel 5) Amplified, used in aircraft navigation, by H. Hughes and Son Limited, England, 1930-1947

Gyro-magnetic Compass

1930-1947
Control box for latitude and speed-error corrector N1350 no.195 by Anschutz & Co., Kiel, Germany, 1951-1956

Control box for latitude and speed-error corrector N1350 no.195 by Anschutz & Co.

1951-1956
Four keys on keyring, for chart comparison unit type C.Y. 5, serial no.13. (complete with:- Extension eyepiece type CY 5, PPI Simulator, base board), by Barr and Stroud Limited, London and Glasgow, United Kingdom, 1945-1954

Four keys for chart comparison unit, type C.Y.5 no. 13

1945-1954
Q.E. Corrector/A.E. Matching Unit, type 2465A, serial no.541 by Marconi International Marine Communications Company Limited, London, England, 1962-1963. Connects the lodestar D/F receiver (1963-17) to the fixed loop aerial (1963-19).

Q.E. Corrector/A.E. Matching Unit

1962-1963
'Ray's' engine direction indicator with rotary switch, by J W Ray & Co. Liverpool Ltd, Liverpool, England, 1953-1954

Engine direction indicator with rotary switch

1953-1954
Chart comparison unit type C.Y. 5, serial no.13. (complete with:- Extension eyepiece type CY 5, PPI Simulator, base board), by Barr and Stroud Limited, London and Glasgow, United Kingdom, 1945-1954

Chart comparison unit, type C.Y.5 no. 13

1945-1954
Elliptical shaped brass navigational instrument with glass viewing window, half mirrored, in leather case, unsigned, 1880-1940.

Elliptical shaped brass navigational instrument with glass viewing window, half mirrored, in leather case .

1880-1940