Name/Title
Plotting RulerEntry/Object ID
1991.037.006Description
Plotting ruler. Navigational aide. Wooden, marked with degrees, etc. for plotting charts. Middle section is raised and has a brass 3/4" notched 'ball' fastened by metal to ruler. The 'ball' is cut through ruler to roll on chart.Acquisition
Source (if not Accessioned)
Hocking, Mr. & Mrs. Wm.,Notes
Accession Date: 01-Mar-91
Mode of Acquisition: giftLexicon
Nomenclature 4.0
Nomenclature Primary Object Term
RulerNomenclature Class
Weights & Measures T&ENomenclature Category
Category 05: Tools & Equipment for Science & TechnologyLegacy Lexicon
Object Name
parallel rulerCreated By
Swallow, DerekCreate Date
October 27, 1995Update Date
May 15, 2025