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Title: Six inch brass sector, by Dollond, engraved "Dollond, London [Go to resource]
Description: Six inch brass sector, by Dollond, engraved "Dollond, London" License: http://creativecommons.org/licenses/by-nc-sa/2.5/ Subjects: sectors
proportion drawing instrumentsSource: Science Museum Creator: Dollond family Identifier: 1915-387 Go to resource More Like this...
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