Phrenological head
1821
Pocket microscope by Jeremiah Sisson
1752
Surveyor's pocket sextant.
1795-1805
Sector signed John Allen
1630-1642
Stained plaster phrenological bust
1821
Cylinder watch in pinchbeck inner case
1750-1797
Altazimuth theodolite, British, 1725-1747
1725-1747
Plaster phrenological bust, London, England, 1821
1821
Lord Kelvin's mirror galvanometer with lamp and stand, 1858.
1858
Improved Patent Portable Theodolite
1818-1826
Pocket-sized spectroscope, cased, by John Browning
Mahogany and brass octant.
1770-1776
Box type pocket sextant.
1845-1855
Tree height measurer, British, 1945-1948
1945-1948
'Range' tape measure, British, 1910-1912
1910-1912
Steward patent telemeter
1908-1912
Abney level & clinometer, English, 1875-1885
1875-1885
Azimuth variation compass, British, 1722-1747
1722-1747
Transit telescope
1770
Brass quadrant with stand and case.
1771
Double-frame brass sextant.
1810-1826
Amputation saw, London, England, 1823-1829
1823-1829
Car clock
1906
Patent prismatic clinometer, British, 1810 -1826
1810-1826
Prismatic magnetic compass, British, 1810-1826
1810-1826
Prismatic magnetic compass, British, 1810-1826
1810-1826
Case of silver mathematical drawing instruments by C. A. Schmalcalder
1810-1826
Boxfoot botanic microscope by Banks
1790-1810
Disc Planisphere
1750-1775
Box type pocket sextant.
1810-1826
Prismatic compass & clinometer, British, 1801-1830
1801-1830
Patent telemeter, British, 1910-1920
1910-1920
Set of paint brushes & paint, British, 1875-1901
1875-1901
Wooden backstaff fitted with artificial horizon.
1730-1735
Brass moving wire filar micrometer by J. Sissons
1740-1760
Watkin type clinometer, British, 1895
1895
Precision Balance, in mahogany and glass case
1788
Ear trumpet
1850-1900
Herbert-Smith type range-finders, British, 1912-1916
1912-1916
Cavalry Survey Sketching Board, 1891-1900
1891-1900
Hollow square pyramid
1833-1851
Hypsometer with carrying case by Elliott Brothers
1831-1870
Pocket alarm watch in pinchbeck case
1771-1800
Automatic lancet, London, England, 1822-1863
1822-1863
Solar microscope with screwbarrel
1750-1775
Set of five suture needles with holder
1830-1889
Circular watch by William Crayle in the Strand
circa 1660
Apothecaries scales with glass pan and steel beam
1880-1940
A pair of instruments
1911
Herbert-Smith type range-finder, British, 1912-1916
1912-1918