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Title: Double-telescope surveying level, European, 1745-1755 [Go to resource]
Description: Double-telescope surveying level fitted with two bubble levels (horizontal & striding), unsigned European, 1745-1755. Design allows double measurement without need for reversing the instrument. License: http://creativecommons.org/licenses/by-nc-sa/2.5/ Subjects: surveying level Temporal: 1745-1755 Source: Science Museum Creator: Unknown maker Identifier: 1955-302 Go to resource More Like this...
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