Demainbray's model scorpion catapult
1745-1755
Demainbray's convex lens
1750
Boxwood human torso showing internal organs
1800-1920
Vaginal speculum
1801-1850
Electrical chimes by George Adams
1781-1790
Demainbray's turquoise disc
1745-1755
Demainbray's yellow disc
1745-1755
Beam compass by George Adams
1775-1795
Demainbray's scioptric ball
1745-1755
Statue depicting the dance of death
Tobacco jar in the shape of a skull
1701-1800
Pair of coloured glass discs, 1750.
1745-1755
Rope maker's
Navigator's Gunter scale in boxwood 24" long
circa 1775
Electric cell, 1823
1823
Pounce Sprinkler
Terrestrial refracting telescope
1700-1750
Lens polisher
Counting machine
Balance beam, steel, boxwood
1745-1755
Lever, angled, boxwood, 1762
1762
Henley Discharging Table, 1820-1850
1820-1850
Rotch true-wind calculator, for use at sea
1903
Hicks patent mercurial minimum thermometer with brass sliding scale
1861
Lind type anemometer, 1870-1876
1870-1876
Spirit thermometer by Pastorelli
1849
Carpenter's slide rule
1861-1910
11-Inch cattle gauging slide rule patented by G.H. Meire
1820-1880
Boxwood Coggeshall folding slide rule, 1720-1730.
1720-1730
European horary quadrant, 1650-1725
1650-1725
Gunter's scale, early example, boxwood, 2' long
Carpenter's sliding joint-rule by I Trafford
1772
Constipation roller for promoting peristalsis
1801-1920
Navigational slide rule by Norie and Co., London.
circa 1825
Brass and boxwood Hatter's rule
1900-1950
Boxwood hatter's rule, [Imperial Measure] with measuring slider
circa 1920
Boxed set of drawing curves
1920-1930
Apparatus to demonstrate the thermal expansion of liquids, mid 19th century.
1831-1870
Vaginal speculum with plug
Boxwood and ebony vaginal speculum
1851-1900
Burt's American Board Rule for superficial measurements
circa 1908
Monaural stethoscope
1850-1880
Vaginal speculum
1851-1900
Cylindrical electrical machine
Harris's balance electrometer, 1840-74.
1840-1874
Ell rule [Imperial Measure] of 45-inches, with divisions to 1/8th inch
1900-1930
Demainbray's Inclined plane
1701-1752
Wooden backstaff or Davis quadrant made by John Gilbert on Tower Hill
1730; 1967
Whirling speculum mirror with components
1762
Dental key handle
1801-1860