postal system

The postal system is a curiosity to those who are accustomed to free delivery several times a day.

The Swiss army, postal system and finances were put under federal control and a national coinage was established.

In 1683 the government of Penn established a postal system for the Colony of Pennsylvania.

He supposed, in response to this important toast, they would expect that he should say something of the postal system.

What is there in a big chimney on a railroad carriage to indicate the nationality of our postal system.