Sector signed John Allen
1630-1642
Pocket microscope by Jeremiah Sisson
1752
Cylinder watch in pinchbeck inner case
Surveyor's pocket sextant.
1795-1805
Phrenological head
1821
Stained plaster phrenological bust
1821
Tree height measurer, British, 1945-1948
1945-1948
Ear trumpet
1850-1900
Pocket alarm watch in pinchbeck case
1771-1800
Transit telescope
1770
Two coloured aquatints of hobby horses
1819
Drawing of Gass Works
1812
Car clock
1906
Richard Hornsby
1858
Hollow square pyramid
1833-1851
Precision Balance, in mahogany and glass case
1788
Mahogany and brass octant.
1770-1776
The Tunnel
1831
Thermometer, glass, Fahrenheit
1801-1900
Pocket-sized spectroscope, cased, by John Browning
Apothecaries scales with glass pan and steel beam
1880-1940
Lovely Llandudno
circa 1910
Improved Patent Portable Theodolite
1818-1826
Patent telemeter, British, 1910-1920
1910-1920
Set of paint brushes & paint, British, 1875-1901
1875-1901
Hypsometer with carrying case by Elliott Brothers
1831-1870
Watkin type clinometer, British, 1895
1895
Steward patent telemeter
1908-1912
Patent prismatic clinometer, British, 1810 -1826
1810-1826
Herbert-Smith type range-finder, British, 1912-1916
1912-1918
Azimuth variation compass, British, 1722-1747
1722-1747
Disc Planisphere
1750-1775
A pair of instruments
1911
Double-frame brass sextant.
1810-1826
Wooden backstaff fitted with artificial horizon.
1730-1735
Matthew Boulton
1812
Case of silver mathematical drawing instruments by C. A. Schmalcalder
1810-1826
Solar microscope with screwbarrel
1750-1775
Coaches &c, Employed on the Railway
1831
Circular watch by William Crayle in the Strand
circa 1660
Brass quadrant with stand and case.
1771
Brass moving wire filar micrometer by J. Sissons
1740-1760
Lord Kelvin's mirror galvanometer with lamp and stand, 1858.
1858
Vectis, Lever, steel and ebony
1787-1830
Boxfoot botanic microscope by Banks
1790-1810
Vectis, Lever, steel and ebony
1787-1830
Amputation saw, London, England, 1823-1829
1823-1829
Set of five suture needles with holder
1830-1889
Automatic lancet, London, England, 1822-1863
1822-1863
Scarificator with four lancets
1860