Celebrations were in full flow yesterday as one of Dublin's oldest and most iconic institutions, the GPO, marked 200 years since opening its doors.
The landmark city centre building has had a colourful history - something that has been reflected in this week's events to mark the anniversary.
They include a specially commissioned performance from leading theatre company Fish- amble and the issuing of a celebratory bicentenary stamp to mark the significant birthday.
Communications Minister Denis Naughten was on hand to unveil a new stamp commemorating the bicentenary, based on an 1820 engraved image by Robert Havell and Son.
Designed by leading architect of the period Francis Johnston, the GPO is best-known historically as the headquarters of the rebels during the 1916 Easter Rising.
Today, it serves as the headquarters of An Post and is Ireland's busiest post office.
A short play by Colin Murphy for Fishamble Theatre in the main GPO hall kicked off the celebrations yesterday.
An exhibition in the main hall charts the history of the building, and a free bicentenary postcard will be available to every visitor during this year, together with a souvenir postmark on purchase of the commemorative stamp.
Further commemorative events will be announced during the year.