• The Silver Tessie is a four-act Expressionist play about the First World War, written between 1927 and 1928 by the Irish playwright Seán O'Casey. It was O'Casey's fourth play and attacks imperialist wars and the suffering that they cause.
•  An antiwar play in four acts, focusing on Harry Heegan, a soldier who goes to war as if going to a football match.
• Act 1 prime of life, as an athletic hero, but unaware of the possibilities and values of life. Act 2 is a sudden change of tempo, being an experiment with expressionist and symbolic theater. Set at the battlefront it unexpectedly concentrates on the cynicism and despair of the common soldier at the front lines.
• Act 3 portrays the bitterness of the veterans in a veterans’ hospital
• Act 4 contrasts the grim plight of the disabled Harry Heegan with the vitality of those who were not combatants and have normal lives and futures to anticipate.