Shop inside the stock ! . Building hidden by a thousand overcoats , brings chaos , but all were sold . All records in high speed salesmanship were broken by Mr Christiian Troelstrup , a Copenhagen clothier who wanted to get rid of a large stock of overcoats , Mr Troelstrp draped his overcoats , more than a thousand of them , all over his building . The walls from roof to pavement became one vast expanse of overcoat , and soon the customers came . Hundreds of them . Extra police had to be called to deal with the crowds who came first to stare then to buy . By the time the harrassed policemen had informed Troelstrup that his overcoats must come down , a buyer had been found for every one . Photo shows , the building covered with overcoats . 8 April 1936