The Irish Sale on March 23 at New York's Bloomsbury Auctions includes such star lots as Sir John Lavery's 1936 oil on canvas "Sunbathers" (estimate: $350,000 to $450,000) and the only known full-sized tricolor flag from the 1916 uprising (estimate: $500,000 to $700,000). For book lovers, there's a rare copy of William Butler Yeats' Mosada ($70,000 to $100,000) and a first edition of the modern masterpiece "Ulysses".