▁by ▁K ul ka ▁a ▁de cade ▁later ▁at ▁ 5 5 ▁K ün nig l berg asse . ▁ ▁During ▁the ▁period ▁ 1 9 2 3 – 1 9 2 7 ▁K ul ka ▁worked ▁between ▁Stuttgart , ▁Vienna ▁and ▁Paris . ▁Lo os ▁was ▁based ▁in ▁Paris ▁during ▁this ▁period . ▁K ul ka ▁collabor ated ▁with ▁Ernst ▁Otto ▁O sw ald ▁on ▁the ▁winning ▁entry ▁of ▁the ▁competition ▁to ▁design ▁the ▁Stuttgart ▁Tag blatt ▁Tower , ▁which ▁was ▁built ▁in ▁ 1 9 2 7 . ▁In ▁ 1 9 2 7 ▁K ul ka ▁spent ▁the ▁year ▁heading ▁Lo os ' s ▁office ▁in ▁Paris , ▁leading ▁the ▁design ▁of ▁the ▁Villa ▁Mol ler ▁Raum plan ▁( after ▁Lo os ▁and ▁K ul ka ' s ▁colle ague ▁Z lat ko ▁Ne uman ▁had ▁returned ▁to ▁Zag reb ), ▁the ▁Paris ▁Kn ize ▁fashion ▁bout ique ▁and ▁other ▁un real ised ▁projects ▁such ▁as ▁the ▁famous ▁Raum plan ▁Villa ▁for ▁Joseph ine ▁Baker . ▁ ▁In ▁ 1 9 2 8 ▁K ul ka ▁and ▁Lo os ▁returned ▁to ▁Vienna ▁and ▁ran ▁an ▁at el ier ▁as ▁full ▁collabor ating ▁partners . ▁Henry ▁K ul ka ' s ▁wife , ▁H ilda ▁K ul ka ▁n ée ▁Ber an , ▁was ▁their ▁practice ▁manager ▁during ▁this ▁period . ▁In ▁the ▁last ▁years ▁of ▁his ▁life ▁Lo os ▁was ▁less ▁active ▁due ▁to ▁the ▁d eter ior ation ▁of ▁his ▁health . ▁ ▁During ▁those ▁years ▁the ▁works ▁often