Ruler
1949
Thornton Ruler
1920-1930
Ruler
1939
Box of "engine divided" rulers
Dancer Ruler
1860-1870
Thornton 12-Inch Rule
1960-1965
Ruler
1875
Ruler
1955-1965
Ruler, wooden, marked 'Armstrong'
Steel Rule
1900
Ruler
1860-1880
Halden Ruler
1870-1900
Ruler
1917
Gardner diesel engines Branded ruler
circa 1954-97
Twelve-Inch Ruler
1930-1940
Gardner diesel engines Branded ruler
circa 1954-97
Sectional ruler
1900-1910
Folding rule
1885-1895
Twelve inch ruler
1872
Wood and brass ruler, London Brighton and South Coast Railway
Ruler
1870-1900
Ophthalmic Rule
1935-1945
Gardner diesel engines Branded ruler
circa 1954-97
Gardner diesel engines Branded ruler
circa 1954-97
Ruler, plastic
Ruler, used by Beyer
1930
German hexagonal section measuring rod, one of four
1695-1715
German hexagonal section measuring rod, one of four
1695-1715
'Days to check 2000' ruler marketing 'Check 2000' tool
1999
German hexagonal section measuring rod, one of four
1715
A.W. Faber ruler
circa 1900
Ruler with markings which oscillate between centimetres and centigrade, inches and farenheit
1970-1985
German hexagonal section measuring rod, one of four
1695-1715
Plastic ruler
1979
Ruler from a pocket set of drawing instruments by William Harris of no.47 Holborn
1805-1815
Rulers
1920-1940
Three-Sided Rule
1860-1900
Metal Rule for Dixie Automatic Can Sealer
Swedish measuring ruler, 28 5/8" long
A.G. Thornton Folding Ruler
1890-1910
Swedish measuring ruler, 26 7/8" long
Ebony ruler, Great Western Railway
1833-1858
Ruler, Great Northern Railway
1857
Boxwood rule
1790-1819