Oriskany - Burgoyne Campaign Stamp and Envelope. 8/3/27. British General Burgoyne's surrender at Saratoga is often noted as the turning point of the American Revolutionary War. The moment is commemorated on a stamp issued in 1927. The stamp is also inscribed Oriskany, a central New York village that was the site of one of the bloodiest battles of the Revolutionary War setting in motion events leading to the surrender.