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Title: One of six photographic enlargements showing the constructio [Go to resource]
Description: One of six photographic enlargements showing the construction of the 26-inch equatorial refracter for Johannesburg Observatory, prepared from negatives lent by Sir Howard Grubb, Parsons and Co. License: http://creativecommons.org/licenses/by-nc-sa/2.5/ Subjects: refracting telescopes
black-and-white prints (photographs)
astronomical instrumentsTemporal: 1928 Source: Science Museum Creator: Sir Howard Grubb, Parsons & Company Identifier: http://collectionsonline.nmsi.ac.uk/grab... Go to resource More Like this...
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