▁to ▁decor ate ▁all ▁the ▁London ▁om n ib uses ▁with ▁c ocoa ▁pod s ▁and ▁every ▁lady ▁passenger ▁was ▁presented ▁with ▁a ▁sample ▁of ▁the ▁c ocoa . ▁ ▁Over ▁the ▁next ▁ 1 0 ▁years ▁he ▁acquired ▁many ▁other ▁accounts ▁and ▁moved ▁to ▁larger ▁prem ises ▁in ▁ 1 8 9 9 . ▁S ▁H ▁B enson ▁Ltd ▁registered ▁as ▁a ▁limited ▁li ability ▁company ▁in ▁ 1 9 0 6 , ▁the ▁first ▁advert ising ▁company ▁to ▁do ▁so . ▁ ▁In ▁ 1 9 0 9 ▁B ens ons ▁moved ▁to ▁Kings way ▁Hall , ▁the ▁first ▁office ▁building ▁in ▁the ▁newly ▁built ▁Kings way . ▁▁ 1 9 1 4 ▁on wards ▁In ▁ 1 9 1 4 ▁the ▁company ▁was ▁taken ▁over ▁by ▁the ▁founder ' s ▁son , ▁Philip ▁who ▁had ▁visited ▁America ▁to ▁study ▁new ▁methods ▁of ▁psych ological ▁market ing ▁and ▁scientific ▁advert ising . ▁ ▁However , ▁Philip ▁did ▁not ▁take ▁to ▁the ▁scientific ▁approach ▁and ▁he ▁maintained ▁something ▁of ▁a ▁bo hem ian ▁atmosphere ▁producing ▁copy ▁that ▁was ▁hum orous , ▁clever ▁and ▁elegant . ▁ ▁One ▁of ▁S . ▁H . ▁B enson ' s ▁copy ▁writers ▁in ▁the ▁ 1 9 2 0 s ▁was ▁Dor othy ▁Say ers , ▁the ▁crime ▁writer . ▁ ▁In ▁the ▁ 1 9 2 0 s ▁and ▁ 1 9 3 0 s , ▁S . ▁H . ▁B enson ▁Ltd ▁was ▁the ▁leading ▁advert ising ▁ag ency ▁with ▁long - running ▁campaign