th ▁General ▁Conference ▁on ▁We ights ▁and ▁Me asures ▁in ▁ 1 9 6 0 ▁as ▁the ▁unit ▁of ▁power ▁incorpor ated ▁in ▁the ▁International ▁System ▁of ▁Units ▁( or ▁" SI "). ▁ ▁On ▁ 2 9 ▁May ▁ 2 0 0 9 ▁the ▁Bank ▁of ▁England ▁announced ▁that ▁B oul ton ▁and ▁W att ▁would ▁appear ▁on ▁a ▁new ▁£ 5 0 ▁note . ▁The ▁design ▁is ▁the ▁first ▁to ▁feature ▁a ▁dual ▁portrait ▁on ▁a ▁Bank ▁of ▁England ▁note , ▁and ▁presents ▁the ▁two ▁industrial ists ▁side ▁by ▁side ▁with ▁images ▁of ▁W att ' s ▁steam ▁engine ▁and ▁B oul ton ' s ▁So ho ▁Man uf actory . ▁Qu otes ▁attributed ▁to ▁each ▁of ▁the ▁men ▁are ▁ins cribed ▁on ▁the ▁note : ▁" I ▁sell ▁here , ▁sir , ▁what ▁all ▁the ▁world ▁des ires ▁to ▁have — P OW ER " ▁( B oul ton ) ▁and ▁" I ▁can ▁think ▁of ▁nothing ▁else ▁but ▁this ▁machine " ▁( W att ). ▁The ▁inclusion ▁of ▁W att ▁is ▁the ▁second ▁time ▁that ▁a ▁Scot ▁has ▁featured ▁on ▁a ▁Bank ▁of ▁England ▁note ▁( the ▁first ▁was ▁Adam ▁Smith ▁on ▁the ▁ 2 0 0 7 ▁issue ▁£ 2 0 ▁note ). ▁In ▁September ▁ 2 0 1 1 ▁it ▁was ▁announced ▁that ▁the ▁notes ▁would ▁enter ▁circul ation ▁on ▁ 2 ▁November . ▁ ▁In ▁ 2 0 1 1 ▁he ▁was ▁one ▁of ▁seven ▁inaug ural ▁induct ees ▁to ▁the ▁Scottish ▁Engineering ▁Hall ▁of ▁Fame