Clarke's Export Hydrometer (dated 1815) by DRING & FAGE
1815
Ullage and casting slide rule, mid 19th century
1831-1870
Portable Sikes' hydrometer by Dring and Fage
1873
Sikes' Revenue Hydrometer, 1816-1873.
1816-1873
Cartier hydrometer, scale 10-45.
Three gilt Tate saccharometers by Dring and Fage
1961
Folding Timber Slide Rule (c. 1860-1870)
1860-1870
Twaddell's No. 1 hydrometer, scale 0-24.
Six's thermometer, 1876.
1876
Salinometer (c. 1860) by DRING & FAGE LONDON
1860
Sikes' Hydrometer, English, 1903-1938
1903-1938
Hydrometer, by Dring and Fage
1801-1900
Four foot gauging rule
1804-1844
Improved hydrometer with four weights
1815-1825
Clarke's Alcohol Hydrometer, 1767-1800
1804-1844
Clarke hydrometer in case with collars and weights
1840-1920
Improved saccharometer
1825-1835
Circular slide rule in brass
1878-1882
Coulson's slide rule
1876
Dring & Fage patent maximum and minimum thermometer, 1865-1875
1865-1875
Set of Sikes' Standard Hydrometers, 1940-1950
1940-1950
Sikes' Hydrometer (c. 1860)
1860
Oleometer in box
Clarke's improved hydrometer
1792
Improved Sikes' Hydrometer by Dring and Fage
1830
Brass Buss saccharometer
1851-1900
Verie or Excise officer's slide rule
Boxwood Slide Rule; made by Dring and Fage
Saccharometer hydrometer
Clarke's Hydrometer (dated 1813)
1813
Brass latex hydrometer by Dring and Fage
circa 1950
Ivory slide rule with two slides
Wollaston's chemical slide rule, c 1820.
1820
Open range brass Sikes' hydrometer by Dring and Fage
1900-1950
Timetable or rent rule
1840-1850
Burt's Slide Rule for reducing superficial measurements to inches
1887 patent
Set of 5 brass Tralles' hydrometers with a Gay-Lussac hydrometer
1900-1950
Dring and Fage saccharometer in box
Rope gauge with brass calliper slide
1855-1865
Three silver (probably plated) Tate saccharometers by Dring and fage
1900-1950
Timetable or rent rule, 1850-1860.
1850-1860
Tree height measurer, British, 1900-1905
1900-1905
Dring and Fage Slide Rule, boxwood and ivory
1820-1860
Gilt Sikes hydrometer by Dring and fage
1867
Improved brewing hydrometer
1815-1825
Clarke's export hydrometer in box.
Twaddell's No. 6 hydrometer, scale 138-170.
Early Sikes' hydrometer
1815-1825
Very delicate spiral bulb thermometer
1876
