http://AATesaurus.cultura.gencat.cat/aat/getty_enhttp://AATesaurus.cultura.gencat.cat/aat/getty_en?tema=31395476boatswains' whistles http://AATesaurus.cultura.gencat.cat/aat/getty_en?tema=31395476 whistles BT http://AATesaurus.cultura.gencat.cat/aat/getty_en?tema=31395476 boatswain's pipe UF http://AATesaurus.cultura.gencat.cat/aat/getty_en?tema=31395476 boatswain's whistle UF http://AATesaurus.cultura.gencat.cat/aat/getty_en?tema=31395476 boatswains' calls UF http://AATesaurus.cultura.gencat.cat/aat/getty_en?tema=31395476 boatswains' pipes UF http://AATesaurus.cultura.gencat.cat/aat/getty_en?tema=31395476 bosuns' whistles UF http://AATesaurus.cultura.gencat.cat/aat/getty_en?tema=31395476 calls, boatswains' UF http://AATesaurus.cultura.gencat.cat/aat/getty_en?tema=31395476 pipes, boatswains' UF http://AATesaurus.cultura.gencat.cat/aat/getty_en?tema=31395476 whistles, boatswains' UF http://AATesaurus.cultura.gencat.cat/aat/getty_en?tema=31395476 whistles, bosuns' UF