Ruler
1875
Ruler with markings which oscillate between centimetres and centigrade, inches and farenheit
1970-1985
Rulers
1920-1940
A.W. Faber ruler
circa 1900
Three-Sided Rule
1860-1900
German hexagonal section measuring rod, one of four
1695-1715
Ruler
1955-1965
Gardner diesel engines Branded ruler
circa 1954-97
Gardner diesel engines Branded ruler
circa 1954-97
Ruler
1860-1880
Halden Ruler
1870-1900
Steel Rule
1900
Ruler, used by Beyer
1930
Thornton 12-Inch Rule
1960-1965
Twelve inch ruler
1872
A.G. Thornton Folding Ruler
1890-1910
Ruler
1917
Ruler
1939
Dancer Ruler
1860-1870
Swedish measuring ruler, 28 5/8" long
Ruler, plastic
Ruler from a pocket set of drawing instruments by William Harris of no.47 Holborn
1805-1815
Plastic ruler
1979
Metal Rule for Dixie Automatic Can Sealer
'Days to check 2000' ruler marketing 'Check 2000' tool
1999
Ruler, wooden, marked 'Armstrong'
German hexagonal section measuring rod, one of four
1715
German hexagonal section measuring rod, one of four
1695-1715
German hexagonal section measuring rod, one of four
1695-1715
Gardner diesel engines Branded ruler
circa 1954-97
Gardner diesel engines Branded ruler
circa 1954-97
Ruler
1870-1900
Thornton Ruler
1920-1930
Twelve-Inch Ruler
1930-1940
Ruler
1949
Box of "engine divided" rulers
Swedish measuring ruler, 26 7/8" long
Sectional ruler
1900-1910
Folding rule
1885-1895
Wood and brass ruler, London Brighton and South Coast Railway
Ophthalmic Rule
1935-1945
Ruler, Great Northern Railway
1857
Ebony ruler, Great Western Railway
1833-1858
Boxwood rule
1790-1819
Two double rulers with hooks for experiments on the collision of bodies
1762
Wooden 18" ruler, British Railways
Ebony rule
Boxwood Ruler, Great Northern Railway
Scale Ruler, 1/8 and 1/4 scales
1960-1970
Scale Ruler, 10 and 20 scales
1960-1970