Protractor and parallel rule combined
1740-1750
Isograph
1876
Parallel rule and protractor with index arm
1865-1875
Semi-circular protractor
Elliptic trammel by W.F. Stanley, London, 1876.
1876
Patent Stanley drawing pricker
1876
Patent reservoir drawing pen
Drawing Set
1840-1890
6 1/2-inch Stanley drawing pen
1876
6 1/2-inch Stanley drawing pen
Agate drawing tracer
1876
Pricker, with 4 3/4-inch needle point
1876
Steel drawing tracer
1876
Protractor scale
1876
Brass Helicograph, for drawing spirals
1850-1853
Drawing instrument by George Adams
1765
Thornton Drawing Instruments
1880-1890
Metograph, in mahogany case
1850-1851
Drawing instrument in case
Box of set squares, protractors and french curves
Part of Drawing Instrument
Semicircular glass protractor
1851-1875
Twenty-seven mixed brass and copper stencils for numbers and letters by W.F. Stanley
1900-1910
Drawing instruments in small leather case
Extension arm for compasses and drawing pens
Helicograph by W.F. Stanley, London, 1876.
1876
Verner's military sketching instrument
Brass protractor
1857
Circular protractor, 1765-1770
1765-1770
Semicircular brass protractor by William Wilton
1825-1859
Centrograph with 2 triangular weights by W.F. Stanley
1876
Cymograph and Antigraph made by Stanley
1876
Protractor, semi-circular, by Watkins and Hill; diameter about 6 1/2"
Circular brass protractor, 1818-1856
1818-1856