AQS256885 First page of a broadside outlining the Act for Blocking up the Harbour of Boston, 1774 (newsprint) by American School, (18th century); American Antiquarian Society, Worcester, Massachusetts, USA; (add.info.: the Boston Port Act was an act of the Parliament of Great Britain enacted 31st March 1774 as a response to the Boston Tea Party, it essentially closed the Port of Boston to all ships regardless of their business until restitution was made to the King\'s treasury, for customs duty lost, and to the East India Company for damages suffered; one of the Intolerable, Punitive or Coercive Acts;); 穢 Courtesy, American Antiquarian Society ; American, out of copyright.