Calculating rule by Lenoir in centimetres with conversions
1800-1830
Slide rule by Robert Bissaker
1654
AVRO Shackleton Centre of Gravity Computer
1950
Radiation slide rule for calculating energy in Planck functions
1950
Fullers spiral slide rule
Two wooden slide rules with identical scales
Engineer's slide rule, boxwood
1790-1819
Harrier "Jump Jet" take off and landing slide rule
1970-1980
"Otis King's" cylindrical slide rule for calculating percentages
circa 1950-1965
Bilham humidity slide rule for tropics, in case
1940-1945
M.O. humidity slide rule MK VI
1960
Boxwood slide rule
1860-1880
Welsh's slide rule for Mass of air
1869-1885
Pilot balloon slide rule Mk II
1940
Pilot balloon slide rule Mk IVA
1965
Welsh's slide rule, for Magnetic observation
Slide rule stamped A.G.Thornton Ltd.
1946
Pilot balloon slide rule Mark IVA, Met Ref No 868A, MO 2792/56, in pine wood case
1956
Welsh's slide rule for psychometric observatiosn
Agnew's Patent Slide Rule
1913
wooden slide rule
wooden slide rule
wooden slide rule
PIC Slide Rule
1950
Boxwood Harrow Mark Reducer slide rule by E.S.A.
Comparative or reducing slide rule
1840-1850
Temperature and pricing slide rule by J.Long
1860-1870
Slide rule
Slide rule with two slides, boxwood
1876
Slide rule
Linear slide rule with scale marked "fiction"
Boxwood slide rule
1797-1826
Brass slide rule by Nairne and Blunt size 11 1/4" x 2" x 3/16" closed
1774-1793
5-Inch Darmstadt 867U/400g Aristo slide rule from the 1973 catalogue
1970-1975
5-Inch MultiLog 870 Aristo slide rule from the 1973 catalogue
1970-1975
5-Inch Reitz 89E Aristo slide rule from the 1973 catalogue
1970-1975
10-Inch Commerz Junior 0907 Aristo slide rule from the 1973 catalogue
1970-1975
5-Inch Studio 868 Aristo slide rule from the 1973 catalogue
1970-1975
10-Inch JuniorTrig 0902 Aristo slide rule from the 1974 catalogue
1970-1875
10-Inch Rietz 99E Aristo slide rule from the 1973 catalogue
1970-1975
10-Inch Junior 0901 Aristo slide rule from the 1973 catalogue
1970-1975
Box-wood slide rule
5-Inch Commerz 845 Aristo slide rule from the 1973 catalogue
1970-1975
Sheppard's cubing slide rule, boxwood
1876
10-Inch Studio 0968/400g Aristo slide rule from the 1973 catalogue
1970-1975
10-Inch Darmstadt 967 Aristo slide rule from the 1973 catalogue
1970-1975
10-Inch StudioLog 0969 Aristo slide rule from the 1973 catalogue
1970-1975
10-Inch MultiRietz 0929E Aristo slide rule from the 1973 catalogue
1970-1975
10-Inch HyperLog 0972 Aristo slide rule from the 1973 catalogue
1970-1975