alf ▁of ▁the ▁Scot ch ▁Wh is ky ▁Association , ▁a ▁client ▁of ▁Houston ' s ▁ag ency ▁Public ▁Rel ations ▁Services ▁Limited , ▁which ▁was ▁looking ▁to ▁generate ▁increased ▁North ▁American ▁expos ure ▁for ▁its ▁products . ▁The ▁first ▁three ▁Cu ps ▁were ▁cont ested ▁between ▁men ' s ▁teams ▁from ▁Scotland ▁and ▁Canada . ▁The ▁United ▁States ▁joined ▁the ▁Scot ch ▁Cup ▁in ▁ 1 9 6 1 , ▁and ▁Sweden ▁also ▁joined ▁the ▁next ▁year . ▁Canada ▁won ▁the ▁first ▁six ▁world ▁titles , ▁of ▁which ▁the ▁legend ary ▁r ink ▁ski pped ▁by ▁Er nie ▁Richard son ▁earned ▁four . ▁The ▁United ▁States ▁was ▁the ▁first ▁country ▁to ▁break ▁Canada ' s ▁stre ak , ▁winning ▁their ▁first ▁world ▁title ▁in ▁ 1 9 6 5 . ▁By ▁ 1 9 6 7 , ▁Norway , ▁Switzerland , ▁France , ▁and ▁Germany ▁were ▁added ▁to ▁the ▁Scot ch ▁Cup , ▁and ▁Scotland ▁won ▁their ▁first ▁title , ▁while ▁Canada ▁finished ▁without ▁a ▁medal ▁for ▁the ▁first ▁time . ▁The ▁tournament ▁was ▁renamed ▁the ▁Air ▁Canada ▁Silver ▁Bro om ▁the ▁year ▁after ▁that , ▁and ▁Canada ▁str ung ▁together ▁five ▁consecutive ▁world ▁titles ▁starting ▁in ▁that ▁year . ▁ ▁In ▁ 1 9 7 3 , ▁the ▁compet ing ▁field ▁was ▁expanded ▁to ▁ten ▁teams , ▁and ▁Italy ▁and ▁Den mark ▁were ▁introduced ▁to ▁the ▁world ▁stage . ▁Sweden , ▁Switzerland , ▁and ▁Norway ▁won ▁their ▁first ▁titles ▁in ▁the ▁following ▁years , ▁and ▁Canada ▁continued ▁to ▁win ▁med als