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Glass prisms in box

Glass prisms in box

1850-1924
Skeletal Figure of a Hexagonal Prism

Skeletal Figure of a Hexagonal Prism

1568-1691
One ten inch flint glass prism of angle 12 1/2 degrees

One ten inch flint glass prism of angle 12 1/2 degrees

1888-1889
Crystal models, 175 of a set of 200 showing the Basic mineralogical shapes as described by Carl Immanuel Löscher in the mid 1790s, and illustrated in a developed form in his publication “Beschreibungen Kristallisationen” of 1801

Crystal models

1795-1819
Boxwood prisms, 144 of a set of 154, showing the Transitions shapes from Carl Immanuel Löscher’s 1796 edition of 'Bescreibungen Kristallisationen'

Boxwood prisms

1790-1819
3 prisms used by the G Natta research group in the first investigations of the infra-red spectra of polypropylene in 1955-56 at the then Montecatini Research Centre. Made from NaCl, KBr and LiF respectively

3 prisms used by the G Natta research group in the first investigations of the infra-red spectra of polypropylene

Pair of binocular prisms in brass case

Pair of binocular prisms in brass case

Twelve prisms, glass with metal frame

Twelve prisms

Prism, in collar, self-luminous, incident light, sub-objective

Prism, in collar

Wenham prism in leather case, 1850-1870

Wenham prism in leather case

1850-1870
Prism, 12, forming a series, numbered .50(.50)2(1)10

Prism, 12