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demonstration instrument (part of an optical bench)
TEACHING AIDS
demonstration instrument
metal; wood

Demonstration instrument for showing transmission and reflection of light through prisms. (Part of an optical bench). Wooden handle and brown metal head. Head contains triangular prism. Round aperture on top, set to one side, with brass extension tube ending with coloured filter and concentric ring target. Two apertures, one square, one rectangular on sides.


1999.4047

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