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Title: surveying square, European, 1601-1700 [Go to resource]
Description: Early form of optical square, unsigned, European, 1601-1700 License: http://creativecommons.org/licenses/by-nc-sa/2.5/ Subjects: surveying instrument Temporal: 1601-1700 Source: Science Museum Creator: Unknown maker Identifier: 1918-125 Go to resource More Like this...
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