Pair of seventeenth-century dividers
1600-1699
Gunter's scale, early example, boxwood, 2' long
Geometrical pen
1810-1898
Navigator's rule with Gunter's scale
Steel dividers by W and C Wynn
1787-1899
Protractor and scale
drawing instrument sets; dividers (compass)
Semi-circular brass protractor by Heath and Wing
1751-1773
drawing instrument sets; dividers (compass)
J. Halden Drawing Set
1895-1910
Ivory plotting scale of type known as single scale
Rectangular protractor and plotting scale
1825-1830
Marquois scales
Wooden scale ruler
1839-1865
Stanley 6-inch plain drawing pen
1876
Brass, 12-inch Gunter scale by Henry Sutton
1652
Hutchinson's stereographic protractor
Boxwood scale
1800-1860
Combination dividers
1772-1795
Nautical chart plotter
1570-1699
Plotting scale
1876
Brass protractor with two blades for setting out and measuring angles
1740-1749
Set of Marquois scales for drawing parallel lines
1900-1930
Stanley's 5-inch improved drawing pen
1876
Equarrimetre, form of rectangular protractor with sliding cursor
1918-1922
Triangular ivory scale
Lithographic drawing pen
1876
Brass reduction compass for setting out lines in proportion
Stanley's 5-inch improved drawing pen
1876
Plotting scale
1851-1900
Semi-circular protractor 12-inch
1720-1753
drawing instrument sets; dividers (compass)
Semicircular rolling protractor rule
Protractor scale
1876
Rectangular protractor and plain scale
1800-1819
Callipers (c. 1800)
1800
Section pen
1876
Spacing dividers
1800-1850
Plotting scale
1876
Steel drawing pen
1876
Plotting scale
1876
Semi-circular protractor
Semicircular protractor
Rectangular protractor for nautical use
1906
Plotting scale
1876
Gunner's callipers, English pattern, by M Berge
1800-1819
Plotting scale
1876
Plotting scale
1876
Plotting scale
1876
