Black-coated

Morrison, son of a policeman and a housemaid, is a born politician. He controls the city administration of London. Says he, “Labor must attract the black-coated worker” (i.e., white-collar worker).

Source: wiktionary

Briefly, it limited the number of persons of Jewish religion to be admitted to the professions of the Press, the Theatre (including Films), the Law, Medicine and Engineering, and to black-coated employments both in these professions and in financial, commercial or industrial enterprises employing more than ten persons to 20 per cent.

Source: wiktionary

Although the largest segment of the membership, category III, included other skilled workers, the vast majority in this segment—about 90 percent—came from the expanding ranks of the black-coated workers.

Source: wiktionary