EntityQ2051620· pop 10· linked from 23 articlesparallel rulersSign in to savedrafting instrument used to draw parallel linesConnectionsInternational Standard Book NumberEntitycompassEntityscissorsEntitybrassEntitydigital object identifierEntityivoryEntityebonyEntitytechnical drawingEntityBuxusEntitygoniometerEntityNational Maritime MuseumEntityTaqi al-Din Muhammad ibn Ma'rufEntitystraightedgeEntityJean CrasEntitytechnical drawing toolEntityFabrizio MordenteEntityCategoriesNavigational equipment