A new stamp celebrating the birth centenary of writer Brian O'Nolan, loved by millions as Flann O'Brien and Myles na gCopaleen, has been launched in Dublin by his brother, artist Micheál Ó Nualláin, whose portrait of his sibling features on the 55c stamp.

The stamp and a special first day cover by Irish designer Steve Simpson can be bought at www.irishstamps.ie, at the GPO Dublin, main Post Offices and by phone at (01) 7057400.

The new stamp will also feature in the limited edition 2011 Irish Stamp Year Book, available online from late November.

The new stamp