Telescope, photoheliograph, metal / glass, designed by Janssen and De La Rue, made by J H Dallmeyer, London, England, 1873-1874, used at Sydney Observatory, Sydney, New South Wales, Australia An astrographic photoheliograph telescope that can be divided into three parts, each part consisting of a brass tube with a glass lens. A brass rod with a screw guage on one end attaches to the photoheliogrpah. Various components including a brass bracket and various sized screws accompany the telescope. Observatory stock number 293
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(Accession num: H10211)
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