Lantern Polariscope
1870-1880
Newton & Co. Polariscope
1865-1875
Plate cut from 3mm calcite uniaxial crystal
Plate cut from brucite uniaxial crystal
Plate cut from tourmaline uniaxial crystal
Plate cut from barytes biaxial crystal
Plate cut from dioptase uniaxial crystal
Plate cut from 0.5mm calcite uniaxial crystal
Polariscope by Reichert no.2472
Plate cut from zircon uniaxial crystal
Plate cut from 1mm calcite uniaxial crystal
Small polariscope, by C.D. Ahrens
Norrenberg Polariscope especially adapted for crystallographic work
Rutley's polariscope, no polarizing nicol prism
Airy polariscope modified by Brady
Plate cut from anhydrite biaxial crystal
Wollaston's polariscope No. 948
1850-1899 (estimated)
Polariscope (c.1840-50)
1840-1850
Polariscope (c.1850)
1850
Brass demonstration polariscope with biaxial crystal
1830-1880
Large projection polariscope in three mahogany cabinets
1875-1880
Plate cut from adularia biaxial crystal
Toy polariscope
1828-1830
Plate cut from left-handed quartz uniaxial crystal
Norrenberg polariscope with Wheatstone's improvements
1876
Polariscope, wood and glass
1850-1924
Norrenberg Polariscope by Soleil
Plate cut from axinite biaxial crystal
Polariscope (c.1840-50)
1840-1850
Plate cut from 8mm quartz uniaxial crystal
Plate cut from apatite uniaxial crystal
Plate cut from corundum uniaxial crystal
Plate cut from meionite uniaxial crystal
Plate cut from hemitrope calcite uniaxial crystal
Plate cut from aragonite biaxial crystal
Polariscope
1840-1850
Plate cut from apophyllite uniaxial crystal
Plate cut from beryl uniaxial crystal
Glass plate used as polariser, in case
1850-1924
Plate cut from right-handed quartz uniaxial crystal
Lantern polariscope
Hand polariscope
1845-1855
Polariscope
1850-1924
Arago polariscope
Early polariscope to show the rings in axis-cut crystals, with case and instructions
1825-1835
Complete Jessop-Leech Photoelastic Bench (Polariscope) by Leech (Rochester) Ltd
1962
Elbow projection polariscope, with accessories
1890-1900
Two Immersion Tanks for Photoelastic Examination of Frozen Stress Specimens in a Polariscope
1960
Polariscope by Horne and Thornthwaite, in case
Polariscope, early form
1845-1855