


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

Polariscope (c.1840-50)
1840-1850

Polariscope (c.1850)
1850

Newton & Co. Polariscope
1865-1875

Wollaston's polariscope No. 948
1850-1899 (estimated)

Brass demonstration polariscope with biaxial crystal
1830-1880

Lantern Polariscope
1870-1880

Plate cut from adularia biaxial crystal

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

Large projection polariscope in three mahogany cabinets
1875-1880

Toy polariscope
1828-1830

Hand polariscope
1845-1855

Glass plate used as polariser, in case
1850-1924

Polariscope
1850-1924

Plate cut from right-handed quartz uniaxial crystal

Lantern polariscope
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
Arago polariscope
Complete Jessop-Leech Photoelastic Bench (Polariscope) by Leech (Rochester) Ltd
1962
"Bestall's Polariscope" (c.1850-60)
1850-1860
Polariscope by Harvey & Peak
1884-1889