http://AATesaurus.cultura.gencat.cat/aat/getty_enhttp://AATesaurus.cultura.gencat.cat/aat/getty_en?tema=31430837North American paper money http://AATesaurus.cultura.gencat.cat/aat/getty_en?tema=31430837 paper money by origin BT http://AATesaurus.cultura.gencat.cat/aat/getty_en?tema=31430837 national bank notes NT http://AATesaurus.cultura.gencat.cat/aat/getty_en?tema=31430837 greenbacks NT http://AATesaurus.cultura.gencat.cat/aat/getty_en?tema=31430837 Continental currency NT http://AATesaurus.cultura.gencat.cat/aat/getty_en?tema=31430837 Federal Reserve notes NT http://AATesaurus.cultura.gencat.cat/aat/getty_en?tema=31430837 silver certificates NT http://AATesaurus.cultura.gencat.cat/aat/getty_en?tema=31430837 gold certificates NT http://AATesaurus.cultura.gencat.cat/aat/getty_en?tema=31430837 paper money, North American UF