[Note: This post was published in the February 2025 Pennsylvania Postal Historian .] On the surface, the folded letter in Figure 1 is not...

On July 16, 1870, fearing the loss of its dominant position in continental Europe, France declared war on the North German Confederation...

This is a great Abraham Lincoln campaign cover (Figure 1). The cover is postmarked "October 29" but without a year. I'm fairly confident,...

For a short period in the mid 1800s until they were put out of business by Congress and the Post Office, there were a number of companies...

To streamline the complex maze of postal services for international mail, 22 countries met in 1874 to establish the General Postal Union,...