


Brass plane table protractor, British, 1821-1826
1821-1826

Brass protractor, German, 1905-1914
1905-1914

Coordinating protractor, German, 1905-1914
1905-1914

Brass protractor, British, 1941-1950
1941-1950

Circular protractor, British, 1800-1819
1800-1819

Protractor and Coordinatograph

Circular Protractor
1875

Dancer Protractor
1860

180-Degree Protractor
1880-1910

180-Degree Protractor
1870-1880

Marking Protractor
1843

Douglas type reflecting protractor, German, 1811-1818
1811-1818

Sandhurst protractor

Geostrophic wind protractor, designed by Lt Cdr Ge
1935-1945

Edye type protractor, British, 1843-1873
1843-1873

Douglas type reflecting protractor, British, 1811-1825
1811-1825

Triangular protractor, European, 1718
1718

Bombing Protractor in Case.
Mine surveyor's kit, 1701-1800
1701-1800
Two Off Metal Protractors Used at the RAE
Vernier Control protractors
1955-1965
Circular plotting protractor patented by E.R. Zenthon in 1960
1960-1970
Brass protractor
Shadow protractor in case
Circular reflecting protractor, British, 1801-1825
1801-1825