s ▁for ▁Gu in ness , ▁Mac leans , ▁Andrew ' s ▁Liver ▁Sal ts , ▁Row nt rees ▁ch oc olate , ▁Li pton ' s ▁Te a ▁tea ▁and ▁Col man ' s ▁Must ard . ▁It ▁special ized ▁in ▁large ▁poster ▁campaign s ▁but ▁under to ok ▁all ▁types ▁of ▁advert ising . ▁ ▁One ▁of ▁the ▁most ▁famous ▁campaign s ▁was ▁its ▁ 1 9 2 6 ▁effort ▁for ▁Col man ' s ▁Must ard ▁and ▁the ▁firm ' s ▁greatest ▁success ▁came ▁in ▁ 1 9 2 8 ▁with ▁the ▁first ▁advert ising ▁campaign ▁for ▁Gu in ness . ▁ ▁The ▁Gu in ness ▁Account ▁In ▁ 6 5 ▁years ▁of ▁advert ising , ▁only ▁ 5 ▁ag encies ▁have ▁ever ▁held ▁the ▁Gu in ness ▁account ▁– ▁S ▁H ▁B enson , ▁J ▁Walter ▁Thompson , ▁Allen ▁Br ady ▁and ▁Marsh , ▁Og il vy ▁& ▁M ather ▁and ▁currently ▁Abb ott ▁M ead ▁V ick ers . ▁S ▁H ▁B enson ▁was ▁the ▁advert ising ▁ag ency ▁that ▁brought ▁together ▁the ▁s log an , ▁Gu in ness ▁Is ▁Good ▁For ▁You ▁and ▁illustr ations ▁by ▁John ▁Gil roy , ▁their ▁in - house ▁artist . ▁Gil roy ’ s ▁first ▁Gu in ness ▁poster ▁was ▁produced ▁in ▁ 1 9 3 0 ▁and ▁he ▁went ▁on ▁to ▁create ▁more ▁than ▁ 1 0 0 ▁press ▁ad s ▁and ▁ 5 0 ▁poster ▁designs ▁for ▁Gu in ness . ▁ ▁Corpor ate ▁change ▁In ▁ 1