http://AATesaurus.cultura.gencat.cat/aat/getty_enhttp://AATesaurus.cultura.gencat.cat/aat/getty_en?tema=31420937compasses http://AATesaurus.cultura.gencat.cat/aat/getty_en?tema=31420937 drafting, drawing and writing equipment by specific type BT http://AATesaurus.cultura.gencat.cat/aat/getty_en?tema=31420937 pencil points RT http://AATesaurus.cultura.gencat.cat/aat/getty_en?tema=31420937 needle points RT http://AATesaurus.cultura.gencat.cat/aat/getty_en?tema=31420937 lengthening bars RT http://AATesaurus.cultura.gencat.cat/aat/getty_en?tema=31420937 dividers RT http://AATesaurus.cultura.gencat.cat/aat/getty_en?tema=31420937 Napier compasses NT http://AATesaurus.cultura.gencat.cat/aat/getty_en?tema=31420937 pillar compasses NT http://AATesaurus.cultura.gencat.cat/aat/getty_en?tema=31420937 bow compasses NT http://AATesaurus.cultura.gencat.cat/aat/getty_en?tema=31420937 proportional compasses NT http://AATesaurus.cultura.gencat.cat/aat/getty_en?tema=31420937 beam compasses NT http://AATesaurus.cultura.gencat.cat/aat/getty_en?tema=31420937 compass UF