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Title: Potassium Bromide prism for IR wavelengths, in sealed glass [Go to resource]
Description: Potassium Bromide prism for IR wavelengths, in sealed glass dessicator, c. 1950. License: http://creativecommons.org/licenses/by-nc-sa/2.5/ Subjects: prism - optical Temporal: 1945-1955 Source: Science Museum Identifier: 1985-199 Go to resource More Like this...
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