I went to this exhibition and enjoyed it. It's quite small, at the bottom of the small gallery on the 1st floor (Gallery 1) but worth the visit.
It's on until the 15th July in the National Gallery (Clare street entrance) and is free in."This exhibition brings together sixteen atmospheric works from the Gallery's collection. It features paintings and watercolours by Walter Osborne, Rose Barton, Jack B. Yeats and William Orpen which give a sense of the city of Dublin as a character in itself."
National Gallery of Ireland,
Merrion Square West, (Entrance on Clare Street), 2, Dublin.