The Penny Post In London
From 'Tour of London and the Provinces ' by Daniel Defoe (1724-1726)

The penny post, a modern contrivance of a private person, one Mr. William Dockraw, is now made a branch of the general revenue by the Post Office; and though, for a time, it was subject to miscarriages and mistakes, yet now it is come also into so exquisite a management, that nothing can be more exact, and 'tis with the utmost safety and dispatch, that letters are delivered at the remotest corners of the town, almost as soon as they could be sent by a messenger, and that from four, five, six, to eight times a day, according as the distance of the place makes it practicable; and you may send a letter from Ratcliff or Limehouse in the East, to the farthest part of Westminster for a penny, and that several times in the same Nor are you tied up to a single piece of paper, as in the General Post-Office, but any packet under a pound weight, goes at the same price.

I mention this the more particularly, because it is so manifest a testimony to the greatness of this city, and to the great exent of business and commerce in it, that this penny conveyance should raise so many thousand pounds in a year, and employ so many poor people in the diligence of it, as this office employs.

We see nothing of this at Paris, at Amsterdam, at Hamburgh, or any other city, that ever I have seen, or heard of.