Old Map of Ulster, Northern Ireland in 1611 by John Speed - Belfast, Derry, County Antrim & Down dublin As is quite clear from

As is quite clear from the top of the map

Many of the UK's first wireless and wired networks were operated by the General Post Office (GPO)

Even though this map is more than 150 years old

also known as the Holy Roman Empire

Specifically

Old Map of Ulster, Northern Ireland in 1611 by John Speed - Belfast, Derry, County Antrim & Down dublin As is quite clear fromThis old, full colour and exceedingly rare map shows the Irish province of Ulster as it was in 1611. It was created by John Speed and engraved by Jodocus Hondius, and originally published in Speed's "The Theatre of the Empire of Great Britaine". This map looks great at all sizes: 12x16 inches (31x41cm), 18x24 inches (45. 5x61cm) and 24x36 inches (61x91. 5cm), but it looks even better when printed large. I can create beautiful, large prints of this map