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Description: | Two photograph mounted together of an 18inch Coelostat, made for the Canberra Observatory, New South Wales by Sir Howard Grubb, Parsons & Company at their optical works in Newcastle-on-Tyne, England. | License: | http://creativecommons.org/licenses/by-nc-sa/2.5/ | Subjects: | black-and-white prints (photographs) ancillary instruments coelostats astronomical instruments heliostats (astronomical) | Temporal: | 1921-1931 | Source: | Science Museum | Creator: | Sir Howard Grubb, Parsons & Company | Identifier: | 1931-915 | Go to resource |
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