In Canada and the United States, a railway post office, commonly abbreviated as RPO, was a railroad car that was normally operated in passenger service...

The Post Office Railway is a 2 ft (610 mm) narrow gauge, driverless underground railway in London that was built by the Post Office with assistance from...

A post office is a public facility and a retailer that provides mail services, such as accepting letters and parcels, providing post office boxes, and...

A Travelling Post Office (TPO) was a type of mail train used in Great Britain and Ireland where the post was sorted en route. The TPO can be traced back...

The United States Postal Service (USPS), also known as the Post Office, U.S. Mail, or Postal Service, is an independent agency of the executive branch...

points. Terminal railway post offices operated generally from 1913-1914 into the mid-1960s, before their function was absorbed by post office sectional centers...

The General Post Office (GPO) was the state postal system and telecommunications carrier of the United Kingdom until 1969. Established in England in the...

Post was transported over water in the United States in the later nineteenth and the twentieth century. Route agents and, later, railway post office (RPO)...

Streetcar railway post office (RPO) routes operated in several major US cities between the 1890s and 1920s. The final route was in Baltimore, Maryland...

Services Act of 1983, the Post Office services of the Department of Posts and Telegraphs (P&T) were divided between An Post and Telecom Éireann, the telecommunications...