Slide rule by Robert Bissaker
1654
AVRO Shackleton Centre of Gravity Computer
1950
Slide rule, "System Rietz", by Sun Hemmi, Japan
Calculating rule by Lenoir in centimetres with conversions
1800-1830
Slide rule for calculation of treadwheel labour
1823
'Otis King Calculator', cylindrical slide rule, England, 1920-1939
1920-1939
Fowler's "Magnum" Calculator
1938-1943
AviatJet 647 Aristo Air Navigation Computer.
1970-1975
Wollaston slide rule of chemical equivalents, 1814.
1814
Fowler Vest Pocket Calculator
1950-1955
Lord's Calculator
1880-1885
British Thornton Slide Rule
1967-1975
'Musigraph 100', slide rule for music theory
1985
Fowler "Jubilee Magnum" Scale Calculator
1948
Faber-Castell Slide Rule
1920
Fowlers Textile Calculator
1932
Aristo-Scholar, 0903-VS slide rule
1970-1975
"Calculex" Circular Slide Rule
1908
Fowler's Calculator
1918-1923
Wooden slide rule with plastic cursor and printed scales by Lawrence Engineering
1950-1965
10-Inch Junior 0901 Aristo slide rule from the 1973 catalogue
1970-1975
Otis King Model K Calculator
1965-1975
Bygrave slide rule, MkII
Studio 01068 Aristo slide rule 20-Inch
1970-1975
5-Inch Studio 868 Aristo slide rule from the 1973 catalogue
1970-1975
PIC Slide Rule
1950
Rietz 109 Aristo slide rule 20-Inch
1970-1975
Circular Calculator
1900
Naviat 661 Aristo Navigation Computer.
1970-1975
10-Inch Commerz II 965 Aristo slide rule from the 1973 catalogue
1970-1975
10-Inch HyperLog 0972 Aristo slide rule from the 1973 catalogue
1970-1975
Circular slide rule by Troughton and Simms
1877
Musical transposition calculator
1820
10-Inch JuniorTrig 0902 Aristo slide rule from the 1974 catalogue
1970-1875
Unique Electrical Slide Rule
1935-1950
Otis King Model L Calculator
1923
Radiac slide rule by Blundell Rules Limited
1960-1972
10-Inch Darmstadt 967 Aristo slide rule from the 1973 catalogue
1970-1975
MultiTrig 829 Aristo slide rule 5-inch
1970-1975
Martin's calculating slide rule
10-Inch StudioLog 0969 Aristo slide rule from the 1973 catalogue
1970-1975
Darmstadt 1067U Aristo slide rule 20-Inch
1970-1975
10-Inch Surveyor Aristo slide rule
1970-1975
10-Inch HyperboLog 0971 Aristo slide rule from the 1973 catalogue
1970-1975
Pilot balloon slide rule, 1927
1927
Water Flow Slide Rule
1965-1975
Piccolo 816 Aristo slide rule 4-inch
1970-1975
PIC Slide Rule
1955
Rietz slide rule
1970-1975
10-Inch BiScholar 0906 Aristo slide rule from the 1973 catalogue
1970-1975