Protractor rule

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Protractor rule, part of a drawing set.

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ID:	NAV0660.9
Type:	Protractor rule
Display location:	Display - Pacific Encounters Gallery
Creator:	Unknown
Date made:	Unknown
Credit:	National Maritime Museum, Greenwich, London. Caird Fund.
Measurements:	Overall: 1 mm x 152 mm x 42 mm
Parts:	Drawing instrument set Knife (NAV0660.1) Pencil attachment (NAV0660.2) Pen attachment (NAV0660.3) Pen attachment (NAV0660.4) Extension arm? (NAV0660.5) Dividers (NAV0660.6) Dividers (NAV0660.7) Rolling parallel rule (NAV0660.8) Protractor rule (NAV0660.9) Drawer (NAV0660.10)