COMMISSIONAIRE • E-FREE TRANSLATION.COM • Definition of Commissionaire

... advance by Larsan. I can tell you that he had long been engaged on its elaboration. If you care to learn how he had gathered information, you will find that he had, on one occasion, disguised himself as the commissionaire between the 'Laboratory of the Surete' and Monsieur Stangerson, of whom 'experiments' were demanded. In this way he had been able before the crime, on two occasions to take stock of the pavilion. He had 'made up' so that Daddy Jacques had not recognised him. And ...

— The Mystery of the Yellow Room • Gaston Leroux