Universal Postal Union

Universal Postal Union – Wikipedia, the free encyclopedia

The UPU established that

1. there should be a more or less uniform flat rate to mail a letter anywhere in the world;

2. postal authorities should give equal treatment to foreign and domestic mail; and

3. each country should retain all monies it collected for international postage.

I’m thinking about this as a predecessor to internet protocols, and as a possible model for confederations of music subscription services.