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Title: One of two profile gauges with convex profile which was used [Go to resource]
Description: One of two profile gauges with convex profile which was used by the 3rd Earl of Rosse to measure the 72 inch mirrors used on the largest Rosse telescope. License: http://creativecommons.org/licenses/by-nc-sa/2.5/ Subjects: optical testing instruments
gauges (mirror)Temporal: 1844-1845 Source: Science Museum Creator: Rosse, William Parsons, Earl of, 1800-1867 Identifier: 1914-372/2 Go to resource More Like this...
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