Czuczor-Fogarasi (1862–1874) has not heard of this conception yet. [Name of the dictionary of the hungarian language in 1862–1874.] The Pallas (1893–1897) [another dictionary] writes about it as an important part of the mail history, mentioning the invention’s path from London to Paris, Berlin and New York. As for its use in Budapest: it will not happen as long as the costs are this high, and the diameter of the tube so small, thus not being profitable enough. The Pallas adds that Budapest wants to follow the French example of a centrally controlled post service.