Rubuta ci gaba don wannan sakin layi - 1958 ya nuna ci gaba na duniya lokacin da aikin Kühn ya kasance a cikin "Yammacin" Jamus pavilion nuni a Brussels World Fair
, ya ƙirƙira shi "wani ɓangaren ƙirar ƙirar fasaha, wanda aka yi wahayi zuwa gare shi ta hanyar x-ray na kirjin mutum". Ko da bayan bayyanar kwatsam na Berlin Wall a 1961, Kühn an gan shi a matsayin memba na tsarin zane-zane, ya lashe kwamitocin daga hukumomin gwamnati kuma an girmama shi saboda kirkirar kirkirar kirkirar sa a cikin aikinsa na fasaha wanda ba a saba gani ba, a bangarorin biyu na abin da ake kira labule na baƙin ƙarfe, duk da karuwar alama ta dindindin a cikin rarrabuwa ta zahiri da siyasa tsakanin Gabas da Yammacin Jamus. Jerin ayyukan da aka ba shi izini a sararin samaniya yanzu ya faɗaɗa zuwa ayyukan 220. Ayyukansa na baƙin ƙarfe sun bayyana, ba kawai a Jamhuriyar Demokradiyyar Jamus ba har ma a wurare kamar Hannover, Dortmund, Saarbrücken da Düsseldorf. Ya kuma ba da gudummawa ga abin tunawa na yaƙi a Coventry da kuma babban Futa Pass Cemetery a cikin Apennines tsakanin Bologna da Florence. Hakanan a cikin 1958 ne ya dawo Berlin ya sami nasarar samun yarjejeniyar da ake buƙata don siyan ɗakin aikinsa da kuma tsohuwar filin da ke kusa da shi.