


Prism. Glass

Reversing Prism for 16mm Back Projection

Prism of quartz: triangular action

Prism of quartz: square section

Small prism in cylindrical brass fitting

Hartridge prism
1984

Centre separating prism for Barr and Stroud rangefinder
1920

Rangefinder centre prism, strip field type

Glass prism showing the illusion of a goblet
1845-1855

One of a pair of prisms in frames

Prism type LF 2349 as generated on Blanchard surface grinder by Barr and Stroud Ltd.
1986

Fluorite Prism by Adam Hilger Ltd.
1900-1905

Carbon disulphide prism, one of four by William Ladd
1870-1884

Carbon disulphide prism, one of four by William Ladd
1870-1884
Carbon disulphide prism, one of four, c.1900.
1875-1885
Prism of crown glass angle 90 degree, length 68mm
prism
Two compound prisms for direct vision spectroscope by E. Lutz
1876
Prism of uranium glass
1845-1855
Adjustable glass prism in brass tube
1850-1924
Adjustable glass prism in metal tube
1850-1924
Three prism solar spectroscope with equatorial mounting and cases
1867
Solar spectroscope by Howard Grubb, Dublin, 1871
1871
Echelon spectroscope
1905
Solar spectroscope by T. Cooke & Sons, 1881
1881
One of a pair of prisms in frames
Prism and lens
1850-1924
Mercury Prism
Glass prism with brass handles
1850-1924
Glass prism
1850-1924
Glass prism with brass handles
1850-1924
Carbon disulphide prism, one of four, c.1900.
1875-1885
Prism Assembly from the Hadland Hyspeed camera
1980s