Ready reckoner for ship's cargoes
1807
Demainbray's cometarium
1750-1760
Architect's drawing instruments
Napier's Bones
1690
Model of Vauloue's piledriver
1737-1752
Sundial making tool
1690-1710
Hughes microphone detector, 1865-1875
1865-1875
Refracting telescope with achromatic lens, made by the Dollond family
1760-1775
Slide rule by Robert Bissaker
1654
Builder's whole, rigged model, of SS 'Great Eastern', 1853-1857
1853-1857
Reproduction in boxwood, "Dr Black 1808 Scr."
1807
Boxwood copy of Trafalgar medal
1805-1819
Wollaston-type optometer
1825-1835
Rectangular reclining sundial
1592
Slide rule, Thomson's patent
Botanical model
1875-1900
Botanical model
1875-1900
Box of sixty boxwood calculating rods
1690-1710
Nocturnal boxwood and brass
1702
Boxwood fathom marker
1876
Boxwood fathom marker
1876
Drawing scale, boxwood
1790-1819
Engineer's slide rule, boxwood
1790-1819
Surveyor's plane table outfit, 1881-1890
1881-1890
Gilt customs and excise standard no 1 (Sikes) hydrometer by J J Hicks
1870-1930
Lefebvre type clitograph, French, 1862
1862
Reproduction in wood, Dr Joseph Black
1809
Reproduction in boxwood, featuring male bust
1807
Cavalry sketching board, 1910
1910
Improved saccharometer
1825-1835
Improved hydrometer with four weights
1815-1825
Power loom shuttle, 1858-1862
1858-1862
Weaving power loom shuttle
1858-1862
Power loom shuttle, 1858-1862
1858-1862
Small piece of boxwood
1790-1819
Improved Callendar and Griffiths Resistance Bridge, 1850-1900
1850-1900
Distance Meter for Plane Table, 1765-1775
1765-1775
Metal factors ruler incorporating sliding caliper marked Thomas Bradburn and Sons
eights and mercury thermometer from the Castlereagh Collection for Constantinople (Turkey), and original correspondence for Constantinople and Iona
1800-1818
Cook Slide Rule
1825-1834
Ronchetti linear slide rule
circa 1847
Improved Patent Magneto Electric Machine for nervous diseases
1862
Magic lantern slide: Man eating rat
1850-1910
Half-block model
1810-1830
Caliper stringing gauge
Original Callendar and Griffiths Resistance Bridge, 1850-1900
1850-1900
New Improved' universal compound microscope with fitted mahogany case
1785-1795
Terrestrial hand telescope
1675-1685
Maximum Mercury and Minimum Alcohol Thermometer by J.J. Griffin & Sons, 1880
1880
Refracting terrestrial telescope
1700-1705