| subject=Protractor | Records | DigitalNZ

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Image: Navigational Protractor Set

Navigational Protractor Set

MOTAT

Image: Protractor and Parallel Rule

Protractor and Parallel Rule

MOTAT

Image: Protractor

Protractor

MOTAT

Image: Case, Protractors, Rule

Case, Protractors, Rule

MOTAT

Image: Protractor

Protractor

Thames Museum

Image: School Protractor

School Protractor

Pahiatua Museum

Image: protractor

protractor

Auckland War Memorial Museum Tāmaki Paenga Hira

Image: protractor

protractor

Auckland War Memorial Museum Tāmaki Paenga Hira

Image: Propeller Protractor

Propeller Protractor

MOTAT

Image: Combined protractor and parallel rule

Combined protractor and parallel rule

Tairāwhiti Museum Te Whare Taonga o Tairāwhiti

Image: Howlett Protractor Signed by Elliott Bros.

Howlett Protractor Signed by Elliott Bros.

Smithsonian Institution, Digital Public Library of America

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