Polarising Prism

Made:
1895-1905 in unknown place
Polarising Prism

Polarising Prism
Science Museum Group
© The Board of Trustees of the Science Musuem

Unsigned microscope polarising prism.

Details

Category:
Scientific Instruments & Research
Object Number:
Y1979.26
Materials:
brass (copper, zinc alloy) and glass
Measurements:
overall: 45 mm 55 mm,
type:
nicol prism
credit:
Gift of J.F. Treeby

Parts

"British" Half-Plate Camera

"British" Half-Plate Camera

"British" bellows half-plate camera, made by Joshua Billcliff for J.T. Chapman, with a Perken, Son & Rayment "rapid euryscope" lens attached, and also accompanied by a portable symmetrical 7x5 "optimus" lens.

Materials:
wood (unidentified) , brass (copper, zinc alloy) and glass
Object Number:
Y1979.26.3
type:
camera
Watkins "Bee" Exposure Meter instructions

Watkins "Bee" Exposure Meter instructions

Three instruction cards for the Watkins 'Bee' exposure meter and one empty box marked 'Miranda; Japan' on the base.

Two of the instruction cards are detailed, printed both sides of a card folded into four. One is dated April 1st 1911 (17th year of issue, price 1d). The other is dated January 16th 1924 (31st year of issue, price 3d with an additional postage cost of 3.5d).

Object Number:
Y1979.26.12.1
type:
instructions
Part of:
Y1979.26.12