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Spectroscopic eyepiece
- maker:
- R and J Beck
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Spectroscopic eyepiece, by R. & J. Beck Ltd., London, in case, 1901-1950
Details
- Category:
- Microscopy (Wellcome)
- Object Number:
- 1980-1900
- Materials:
- tube, metal and tube, glass
- credit:
- Cowen, B.C.
Spectroscopic eyepiece, by R. & J. Beck Ltd., London, in case, 1901-1950