Pair of seventeenth-century dividers
1600-1699
Gunter's scale, early example, boxwood, 2' long
Navigator's rule with Gunter's scale
drawing instrument sets; dividers (compass)
Steel dividers by W and C Wynn
1787-1899
Geometrical pen
1810-1898
Protractor and scale
drawing instrument sets; dividers (compass)
Semi-circular brass protractor by Heath and Wing
1751-1773
J. Halden Drawing Set
1895-1910
Ivory plotting scale of type known as single scale
Marquois scales
Rectangular protractor and plotting scale
1825-1830
Hutchinson's stereographic protractor
Plotting scale
1876
Brass, 12-inch Gunter scale by Henry Sutton
1652
Stanley 6-inch plain drawing pen
1876
Wooden scale ruler
1839-1865
Set of Marquois scales for drawing parallel lines
1900-1930
Nautical chart plotter
1570-1699
Boxwood scale
1800-1860
Combination dividers
1772-1795
Rectangular protractor for nautical use
1906
Brass protractor with two blades for setting out and measuring angles
1740-1749
Stanley's 5-inch improved drawing pen
1876
Triangular ivory scale
Equarrimetre, form of rectangular protractor with sliding cursor
1918-1922
drawing instrument sets; dividers (compass)
Lithographic drawing pen
1876
Plotting scale
1851-1900
Spacing dividers
1800-1850
Callipers (c. 1800)
1800
Brass reduction compass for setting out lines in proportion
Stanley's 5-inch improved drawing pen
1876
Semi-circular protractor 12-inch
1720-1753
Protractor scale
1876
Plotting scale
1876
Rectangular protractor and plain scale
1800-1819
Gunner's calliper in electrum and ivory
1816-1850
Rectangular protractor
Section pen
1876
Semi-circular protractor
Steel dividers
Semicircular rolling protractor rule
Steel drawing pen
1876
Three diagonal scales
1731-1770
Plotting scale
1876
Plotting scale
1876
Plotting scale
1876
