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Title: Pilot balloon theodolite by Cary & Co., London (incomplete) [Go to resource]
Description: Pilot balloon theodolite by Cary & Co., London (incomplete) License: http://creativecommons.org/licenses/by-nc-sa/2.5/ Subjects: balloon theodolite Source: Science Museum Creator: Cary, Porter Limited Identifier: 1995-1918 Go to resource More Like this...
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