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)
Ivory plotting scale of type known as single scale
Semi-circular brass protractor by Heath and Wing
1751-1773
J. Halden Drawing Set
1895-1910
Marquois scales
Hutchinson's stereographic protractor
Rectangular protractor and plotting scale
1825-1830
Plotting scale
1876
Brass, 12-inch Gunter scale by Henry Sutton
1652
Stanley 6-inch plain drawing pen
1876
Wooden scale ruler
1839-1865
Combination dividers
1772-1795
Set of Marquois scales for drawing parallel lines
1900-1930
Nautical chart plotter
1570-1699
Boxwood scale
1800-1860
Brass protractor with two blades for setting out and measuring angles
1740-1749
Rectangular protractor for nautical use
1906
drawing instrument sets; dividers (compass)
Plotting scale
1851-1900
Triangular ivory scale
Equarrimetre, form of rectangular protractor with sliding cursor
1918-1922
Stanley's 5-inch improved drawing pen
1876
Lithographic drawing pen
1876
Brass reduction compass for setting out lines in proportion
Stanley's 5-inch improved drawing pen
1876
Gunner's calliper in electrum and ivory
1816-1850
Semi-circular protractor 12-inch
1720-1753
Spacing dividers
1800-1850
Rectangular protractor
Callipers (c. 1800)
1800
Semicircular rolling protractor rule
Protractor scale
1876
Plotting scale
1876
Rectangular protractor and plain scale
1800-1819
Section pen
1876
Steel dividers
Semicircular protractor
Semi-circular protractor
Steel drawing pen
1876
Three diagonal scales
1731-1770
Symetroscope, patent callipers in wood with brass scale based on "systeme Silvy-Leligois"
Semi-circular protractor by Henry Sutton
1655
Plotting scale
1876